chapter 4 power tools and equipment worksheet answers pricelist

After studying this chapter, you will be able to: Air Compressor List the most commonly used power tools and An air compressor is the source of compressed air equipment. for an automotive service facility. Look at Figure 4-1. An Describe the uses for power tools and equipment. air compressor normally has an electric motor that spins Explain the advantages of one type of tool over an air pump. The air pump forces air into a large, metal another. storage tank. The air compressor turns on and off auto- Explain safety rules that pertain to power tools matically to maintain a preset pressure in the system. Metal air lines feed out from the tank to several locations and equipment. in the shop. Technicians can then connect their flexible Correctly answer ASE certification test questions air hoses to the metal lines. that require a knowledge of power tools and equipment. Warning! Shop air pressure usually ranges from 100- 150 psi (689-1034 kPa). This is enough pres- To be a productive technician in today"s automotive sure to kill or severely injure a person. Respectservice facility, you must know when and how to use shop air pressure!power tools and equipment. Power tools are tools drivenby compressed air, electricity, or pressurized liquid. They Air Hosesmake many repair operations easier and quicker. Largeshop tools, such as floor jacks, parts cleaning tanks, and Flexible, high-pressure air hoses are connected to thesteam cleaners, are called shop equipment. metal lines from the air compressor. These hoses allow This chapter discusses properly selecting and using the technician to take a source of air pressure to thecommon power tools and shop equipment. They can be vehicle being repaired. Quick-disconnect couplings arevery dangerous if misused. Always follow the operating used to connect air hoses and air tools to the compressedinstructions for the particular tool or piece of equipment air system without using a wrench. To join or separate abefore use. If in doubt, ask your instructor for a demon-" quick-disconnect coupling, pull back on the coupling"sstration. Specialized power tools and equipment are cov- outer sleeve with finger pressure. With the sleeve pulledered in later chapters. Refer to the index to find more back, you can push the coupling together or pull it apart.information 011 them as needed.

Other ComponentsCompressed-Air System A pressure regulator is used to set a specific pres- The components of a compressed-air system include sure in the compressed-air system. This pressure is oftenan air compressor, air lines, air hoses, and air tools. In called shop pressure. In most cases, shop pressure isaddition, a pressure regulator, filter, and lubricator may between 100 and 150 pounds per square inch (psi). Abe attached to the system. Air tools are driven by the filter may be connected to the system. The filter removescompressed-air system. Air-powered tools can be found water from the compressed air. This increases the life ofin nearly every service facility. air tools. In addition, a lubricator may also be connected

Air Tools Air tools use the energy of compressed air for opera-tion. They are also called pneumatic tools. Air tools arelabor-saving devices and well worth" their cost. Alwayslubricate an air tool before and after use. While pressingthe air tool"s trigger, squirt a few drops of air tool oil intothe tool"s air inlet fitting. Not only will the oil protect theinternal parts of the tool during use, but it will also pre-vent the internal parts from rusting during storage. A

Air Wrenches Air wrenches, or impact wrenches, provide a veryfast means of installing or removing threaded fasteners.Look at Figure 4-2A. An impact wrench uses com~pressed air to rotate a driving head. The driving headholds a special impact socket. B Impact wrenches come in 3/8//, 1/2"/, and 3/4/1 drivesizes. A 3/8/1 drive impact is ideal for small fasteners, Figure 4-2. A-1/2" drive impact wrench. B-3/8" drive airsuch as 1/4//-9/16/1 bolts. A 1/2/1 drive is for general pur- ratchet. (Snap-on Tool Corp.)pose use with medium to large fasteners, such as 1/2//- r/bolts. The 3/4// drive impact is for extremely large fas-teners. It is not commonly used in automotive service. A Caution!button or switch on the impact wrench controls the direc- Until you become familiar with the operation oftion of rotation. In one position, the impact wrench an air wrench, be careful not to overtightentightens the fastener. With the switch in the other posi- bolts and nuts or leave them too loose. It is easytion, the wrench loosens the fastener. to strip or break fasteners with an air tool. Chapter 4 Power Tools and Equipment 49

Air Ratchet hammering attachments are available. Be sure to select the correct one for the job. An air ratchet is a special impact wrench designedfor working in limited space. Look at Figure 4-2B. For Warning! Never turn an air hammer on unless the toolinstance, an air ratchet is commonly used when removingwater pumps. It will fit between the radiator and engine head is pressed tightly against the workpiece.easily. It works in much the same way as a hand-tool Otherwise, the tool head can fly out of theratchet. An air ratchet normally has a 3/811 drive. hammer with great force, as if shot from a gun!However, it does not have very much turning power.Final tightening and initial loosening must be done with Blowgunhand tools. An air-powered blowgun is commonly used to dry and clean parts washed in solvent. It is also used to blowImpact Sockets and Extensions dust and loose dirt from parts before or during dis- Special impact sockets and impact extensions must assembly. See Figure 4-4A.be used with air wrenches. These are case hardened, When using a blowgun, wear eye protection. Directthicker, and much stronger than conventional sockets and the blast of air away from yourself and others. Do notextensions. A conventional socket can be ruined or blow brake and clutch pmts clean. The dust from thesebroken by the hammering blows of an impact wrench. parts may contain asbestos. Asbestos is a cancer-causingImpact sockets and extensions are easily identified substance. Another type of blowgun is a solvent gun,because they are flat black, not chrome. Figure 4-4B. It can be used to wash parts that will not fit into a cleaning tank.A.~ Caution! Know when and when not to use power tools. In most situations, power tools will speed up your wo~k. However, there are many times when they should not be used. For example, never use an impact wrench in place of a torque wrench. An impact wrench will not torque crit- ical fasteners to their correct specification. Problems and comebacks will result.

Air Drill An air drill is excellent for many repairs because ofits power output and speed adjustment capabilities. Itspower and rotating speed can be set to match the job athand. Look at Figure 4-5. With the right attachments, airdrills can drill holes, grind, polish, and clean parts. A rotary brush is used in an air or electric drill forrapid cleaning of parts, Figure 4-6. It can quickly removeold gasket material, carbon deposits, and rust with a min-imum amount of effort. An abrasive pad is another type of cleaning tool thatcan be used in an air or electric drill. It is used for Figure 4-7. This die grinder is equipped with a high-speedremoving old gasket material. It has the advantage of not stone. This tool is used for removing burrs and for otherscratching aluminum like a rotary brush can. smoothing operations. Here, the technician is making minor repairs to a damaged cylinder head combustion chamber. A rotary file, or stone, can be used in an air drill,electric drill, or air (die) grinder, Figure 4-7. It is handyfor removing metal burrs and nicks. Make sure the stoneis not turned too fast by the air tool. Normally, the max- Electric Toolsimum speed is printed on the file or stone container. There are many electric tools that can be useful to a Warning! technician. Some of these tools, such as a drill press or Use a high-speed rotary brush in an air drill. A grinder, may be fixed to the floor or a bench. Other tools, brush designed for an electric drill may fly such as a drill, are portable and can be taken to the job site. apart. To be safe, always adjust an air drill to the slowest acceptable speed when using a - Bench Grinder rotary brush. Also, always wear eye protection. A bench grinder can be used for grinding, cleaning, or polishing operations, Figure 4·8. A bench grinder usually has two wheels-a grinding wheel and a wire wheel. The hard, abrasive grinding wheel is used for sharpening and deburring. The soft wire wheel is used for cleaning and polishing. A few bench grinder rules to follow are: • Always wear eye protection and keep your hands away from the wheel. • Make sure the grinder shields are in place.

Drills Drills are used to create holes in metal and plasticFigure 4·6. A rotary brush is commonly used in a drill for parts. Some drills are portable; others are mounted on acleaning off carbon deposits or old gaskets. Always wear eye workbench or the floor. Drills use different-size bits toprotection. create the size of hole needed. Chapter 4 Power Tools and Equipment 51

Figure 4-10. A key is used to tighten a bit in the chuck.Figure 4-8. The grinding wheelan a bench grinder is used tosharpen tools. The wire wheel can be used to clean and polishsmall parts. Always keep shields, tool rests, and guards in place.

Transmission JackHydraulic Tools Transmission jacks are designed to hold transmis- Hydraulic fools are powered by pressurized liquid. sions and transaxles during removal or installation. OneThe hydraulic tools typically used in the automotive shop type is similar to a floor jack. However, the saddle isinclude jacks, cranes, and presses. These tools are dis- enlarged to fit the bottom of a transmission. Another typecussed in the next sections. of transmission jack is designed to be used when the vehicle is raised on a lift, Figure 4-14. It has a long post that can reach high into the air to support the transmission.Floor Jack A floor jack is used to raise either the front, sides, orrear of a vehicle. Look at Figure 4·13. To avoid vehicledamage, place the jack saddle under a solid part of the carsuch as the frame, suspension arm, or axle housing. If the

Figure 4-14. A transmission jack is designed for holding trans- missions during removal, transporting, and installation. ThisFigure 4-13. A floor jack is for raising the car only. foot-operated, hydraulic stand can be extended to a height(Lincoln Automotive) of 72". (OTC Div. of SPX Corp.) Chapter 4 Power Tools and Equipment 53

Engine Crane , • Warning! A hydraulic press can literally exert tons of A portable engine crane is used to remove and install force. Wear eye protection and use recom-heavy engine assemblies, Figure 4-15. It has a hydraulic mended procedures. Parts can break and fly outhand jack for raising engines and a pressure-release valve with deadly force!for lowering engines. The engine crane is also handy forlifting intake manifolds, cylinder heads, engine blocks,transmissions, transaxles, and other heavy parts. Shop Equipment In addition to pneumatic, hydraulic, and electricHydraulic Press tools, there are various pieces of shop equipment that a technician may find useful. These include tire changers, A hydraulic press is used to install or remove gears, stands, cleaners, welders, lights, and creepers. These arepulleys, bearings, seals, and other parts requiring a high all discussed in the following sections.pushing force. One is shown in Figure 4-16. A hydraulicram extends as the pump handle is worked. The rampresses the parts against a table. Arbor Press An arbor press works like a hydraulic press. However, it is all mechanical. Hydraulic pressure is not used; therefore, the operating pressure is much lower. An arbor press is suited for smaller jobs.

Oxyacetylene Torch An oxyacetylene torch can be used to heat, cut, weld, or braze metal parts, Figure 4-20. The oxy- acetylene setup consists of an oxygen tank, an acetylene tank, pressure regulators, hoses, and a hand-held torch. Tremendous heat is produced by the burning acetylene gas and oxygen. The oxyacetylene cutting torch is often used to remove old, rusted exhaust systems. To use an oxyacetylene cutting torch: 1. Put on all necessary protective gear, including a welding helmet or goggles, welding gloves, and a leather jacket. 2. Inspect the oxyacetylene equipment forFigure 4-18. A cold-solvent tank is used to remove oil and lightgrease from parts. The unit sprays filtered solvent onto parts. damage and make sure all cylinder, regu-Rub the parts with a brush for rapid cleaning. lator, and torch valves are closed. 3. Light the cutting torch according to the manufacturer"s recommendations. 4. With the torch held at a 90° angle to theSteam Cleaner and High-Pressure Washer workpiece, concentrate the flame on the A steam cleaner or high-pressure washer is used to spot where the cut will begin.remove heavy deposits of dirt, grease, and oil from the S. When the spot becomes cherry red, depressoutside of large assemblies, such as engines, transmis- the oxygen cutting lever to begin the cut.sions, and transaxles. Look at Figure 4-19. To help keep 6. Move the torch along the workpiece tothe environment clean, wire brush the item to be cleaned make the cut.and collect oil-soaked dirt before steaming or washing. 7. After making the cut, release the cuttingThen, dispose of the oil-soaked material properly. lever and shut off the torch. Chapter 4 Power Tools and Equipment 55

Pressure regulator Soldering Gun valve Acetylene Oxygen A soldering gun or soldering iron is used to join Hoses wires during electrical repairs, Figure 4-21. An electric current heats the tip of the gun. The hot gun tip is used to heat the wires. Solder is then applied to the hot wires and Tanks it melts. Solder is a lead-tin alloy. When the solder cools, it hardens into a strong, solid connection.A Battery Charger 240 volt electrical A battery charger is used to re-energize a "dead," or outlet discharged, battery. It forces current back into the battery to recharge the plates and battery acid. The red charger lead connects to the positive (+) battery terminal. The black charger lead connects to the negative (-) battery Power switch terminal.

Figure 4-20. A-An oxyacetylene outfit can be used for cuttingor welding metal. B-A basic arc welder. (Sun) ~-)--~~)~ A \ Tip Power cord /

Figure 4-22. A-Droplight. B-Drop or extension cord.C- Three-prong adapter with ground terminal and ground wirefor safety. D-Fluorescent droplight. (Florida Dept. of Voc. Ed.) Figure 4-24. Jumper cables are used for emergency starting. Chapter 4 Power Tools and Equipment 57

Creepers Covers A creeper is useful when working under a car sup- Fender covers are placed over fenders, upper grille,ported on jack stands, Figure 4-25A. It lets the techni- or other body sections to prevent vehicle damage. Theycian easily roll under vehicles without getting dirty. A protect the paint or finish from nicks, scratches, andstool creeper allows the technician to sit while working grease. See Figure 4-27. Never lay tools on a painted sur-on parts that are near the ground. See Figure 4-25B. For face. Costly scratches may result.example, a stool creeper is often used during brake Seat covers are placed over seats to protect themsystem repairs. The brake parts and tools can be placed from dirt, oil, and grease that might be on your workon the creeper. The service technician can sit and still be clothes. These covers should be used while driving theat eye level with the brake assembly. vehicle or while working in the passenger compartment.

Roll-Around Cart Workplace Skills A large roll-around cart or table is handy for taking a Social skills are the techniques you use to conductnumber of tools to the job. One is pictured in Figure 4-26. yourself in such a way that your customers and fellowA technician can quickly place all needed tools in the cart employees like and respect you. Many times, you willand take them to the vehicle. The cart places the tools need the help of another technician to complete a dif-within hand"s reach: This saves time and effort before, ficult task. If your co-workers dislike you, you may haveduring, and after the job. trouble finding help when you need it

Summary • Power tools use electricity, compressed air, or hydraulic pressure (liquid confined under pres- sure). Large shop tools, such as floor jacks, parts cleaning tanks, and steam cleaners, are classified as shop equipment. • An air compressor is the source of compressed (pressurized) air for the auto shop.A B • High-pressure air hoses are connected to the metal lines from the air compressor.Figure 4-25. A-A creeper is for working under a vehicle.S- The stool creeper is commonly used during brake and sus- • Air tools, also called pneumatic tools, use airpension repairs. You can sit on the stool and store tools on the pressure for operation. They are labor-savingbottom. (Snap-on Tool Corp.) tools and are well worth their cost.

Figure 4-26. A roll-around cart allows you to take many tools tothe vehicle. This saves several trips to the toolbox. It also saves Figure 4-27. Always take good care of your customer"s vehicle.time during cleanup at the end of the day. (Snap-on Tool Corp.) Fender covers protect the paint from nicks and dents.58 Section 1 Introduction to Automotive Technology

• Air wrenches, or impact wrenches, provide a very fast means of installing or removing threaded Important Terms fasteners. Power tools Portable electric drills • Special impact sockets and impact extensions Shop equipment Drill press must be used with air wrenches. Air compressor Hydraulic tools Air hoses Floor jack • A blowgun is commonly used to dry and clean Quick -disconnect Transmission jacks parts washed in solvent. connectors Engine crane • An air drill is excellent for many repairs because Pressure regulator Hydraulic press of its power output and speed adjustment Filter Arbor press capabilities. Lubricator Tire changer • A bench grinder can be used for grinding, Air tools Jack stands cleaning, or polishing operations. The hard Air wrenches Engine stand grinding wheel is used for sharpening or debur- Impact wrenches Cold solvent tank ring. The soft wire wheel is for cleaning and Air ratchet Steam cleaner polishing. Impact sockets High-pressure washer • Drill bits, or twist drills, are used to drill holes in Impact extensions Oxyacetylene torch Air hammer Welder metal and plastic parts. Air chisel Soldering gun • A drill bit is mounted in and rotated by a drill. A Blowgun Soldering iron special key is sometimes needed to tighten the drill bit in the drill chuck. . Solvent gun Battery charger Air drill Droplight • A floor jack is used to raise either the front, sides, Rotary brush Pullers or rear of a vehicle. Abrasive pad Jumper cables • A tire changer is a common piece of shop equip- Rotary file Creeper ment used to remove and replace tires on wheels. Stone Stool creeper • Jack stands support a vehicle during repair. After Electric tools Roll-around cart raising a vehicle with a jack, place stands under Bench grinder Fender covers the vehicle. Drill bits Seat covers

• A portable engine crane is used to remove and install engines. Review Questions-Chapter 4 • An engine stand is used to hold an engine while it Please do not write in this text. Place your answers is overhauled (rebuilt) or repaired. on a separate sheet of paper. • A cold solvent tank can be used to remove grease 1. Power tools use __ , , or __ and oil from parts. __ as sources of energy. • An oxyacetylene torch outfit can be used to heat, 2. Which of the following is not a commonly used cut, weld, or braze metal parts. air tool? • A welder is used to melt and fuse metal parts (A) Impact wrench. together. (B) Air ratchet. • A soldering gun or iron is used to solder wires. (C) Air chisel. (D) Air saw. • A battery charger is used to recharge a discharged car battery. 3. A(n) __ is used to blow dirt off parts and to dry parts after cleaning. • A drop light provides a portable source of light. 4. A rotary file is frequently used to remove __ . • Pullers are needed to remove seals, gears, pulleys, (A) old gasket materials steering wheels, axles, and other pressed-on parts. (B) carbon deposits • Jumper cables are used to start engines that have (C) metal burrs and nicks a dead (discharged) battery. (D) None of the above. • Fender covers are placed over the fenders, the 5. List four important rules for a bench grinder. upper grille, or other body sections to protect them. 6. List five important rules for a drill press. Chapter 4 Power Tools and Equipment 59

7. are used to support a vehicle while 6. Each of the following can be used to clean working under it. parts except: (A) Floor jacks (A) air drill. (B) Jack stands (B) blowgun. (C) Transmission jacks (C) air ratchet. (D) Bumper jacks (D) bench grinder. 8. Explain the use of a solvent tank. 7. Which of the following is not a rule to follow9. What are wheel pullers for? when using a bench grinder?10. A 1/2" drive impact wrench is used for fasteners (A) Wear eye protection. with head sizes between 1/2" to 1". Which of the (B) Make sure shields are in place. following sockets can be used by this particular (C) Use the wire wheel to clean soft metal tool? parts. (A) 5/8" chrome plated socket. (D) Keep the tool rest adjusted close to the (B) 9/16" flat black socket. stone and brush. (C) 7/16" flat black socket. 8. When using a drill press, Technician A (D) None of the above. believes drilling pressure should not be released until the bit breaks completely through the bottom of the part. Technician B ASE- Type Questions believes pressure release should occur just before the bit breaks through. Who is right? 1. Power tools are tools that use: (A) A only. (A) electricity. (B) B only. (B) hydraulics. (C) Both A and B. (C) compressed air. (D) Neither A nor B. (D) All of the above. 9. After using a floor jack to raise the front of a 2. Technician A says that shop air pressure is usu- car: ally around 100 to 150 psi. Technician B says (A) place the car in park. shop air pressure is much higher, around (B) block the car"s wheels. 300 psi. Who is correct? (C) secure the car on jack stands. (A) A only. (D) All of the above. (B) B only. 10. The __ press performs the same function as (C) Both A and B. a hydraulic press, but at lower pressures. (D) Neither A nor B. (A) arbor 3. Which of the following IS not a common (B) steam impact wrench drive size? (C) rotary (A) 1/4". (D) ratchet (B) 3/8". (C) 1/2". (D) 3/4". Activities for Chapter 44. Technician A says to use a 1/4" drive on sockets from 1/4" to 9/16". Technician B says to use a 1. Using an automotive tool catalog, develop a list 3/8" drive on these socket sizes. Who is correct? of power tools needed to equip your school"s (A) A only. automotive repair shop. Find prices and add up (B) B only. the cost. (C) Both A and B. 2. Research safety literature on power equipment (D) Neither A nor B. used in an automotive repair facility. 5. Special impact sockets and extensions are (A) Develop a bibliography of resources for easily identified because they are: safe use of power equipment. (A) chrome. (B) Develop a list of safety rules for their use. (B) aluminum. (C) flat black. (D) hard rubber.

tools driven by compressed air, electricity, or pressurized liquid Shop equipment large shop tools such as floor jacks, parts cleaning tanks, and steam cleaners

Connected to the metal lines from the air compressor Allow the technician to take a source of air pressure to the vehicle being repaired Quick-disconnect connectors allow a technician to connect or disconnect hoses or tools without using a wrench

used to set a specific pressure in the system ( psi, or kPa) Filter traps water so that it can be drained daily Lubricator introduces oil into the airstream increases the life of air tools

Must be used with air wrenches Case hardened, thicker, and much stronger than conventional sockets and extensions Impact tools are flat black, instead of chrome Using a chrome tool on an impact wrench can be unsafe

The most common source of power for these tools is an electric motor base, but there are some which are fueled by gasoline, however; this source of power is rare and generally applies to garden tools.

An electric power tool is a common item of almost everyone’s everyday life. These incredibly useful tools are found in nearly every industry, and help to perform tasks that could otherwise be impossible or extremely difficult to complete.

Power tools are used literally everywhere, in the home, apartment, condo and all the way to the professionals at job sites and builders. Many types of power tools will also be found in use with metalworkers, DYI hobbyists, mechanics, and so on.

A cordless drill (or power drill) is an electric drill with rechargeable batteries and it is the most common item in any garage, construction site, or workshop.

This is one of the first power tools that everyone should have. These drills have enough strength to drive screws and drill into thick planks of wood.The cordless drill is the perfect representative tool for those who enjoy performing projects around the home.

There are also corded drills and these machines are leaner, lighter, and bit more powerful than the cordless version. They are also noisier, not as convenient to use, and restrict your mobility.

A cordless drill is irreplaceably more convenient even though they may be a bit bulkier, and a heavier tool. The biggest benefit of the cordless drill is not having to be hindered or limited by the power cord.

You can tell how powerful a cordless drill is by looking at its voltage. More voltage will give you more power. There are high voltage models, light-duty models, and then the medium general-purpose models.

Torque is another feature to check when choosing your cordless drill. If you plan on drilling on harder surfaces, you will want more twisting force. Torque is what allows the drill to apply more of the twisting power to your work surface.

This tool uses a collet which accepts bits and hex-shanked drivers A good impact driver is going to be a versatile and powerful tool to add to your collection of necessary tools.

When choosing the impact tool for your needs, you will want to check the power, torque, speed and hammer action, so the tool handles the jobs you need to finish.

This tool is not used for driving screws, and should never be used in this manner. While the hammer drill is often confused with the impact driver, you should know these are two entirely different power tools.

In the line of construction power tools, the rotary hammer is one that will perform your heavy-duty jobs such as chiseling and drilling into hard materials. It is much like the hammer drill as it also pounds its drill bit in and out as it spins.

Rotary hammers use a piston mechanism rather than a special clutch, which allows it to deliver a more powerful hammer blow and drill a much larger hole faster.

These tools have two pistons – a flying piston and a drive piston. Its electric motor turns a crank that then moves the drive piston back and forth in the cylinder.

The rotary action of the rotary hammer can be turned off and on so just its percussive force can be used. Point and chisel accessories are often with this power tool, so you can also use it as a small chilling tool.

Impact wrenches use compressed air as its power source, although there are also hydraulic and electric-powered models as well as cordless ones becoming more popular.

The chuck is what holds your electric screwdriver together. These are pretty simple parts, and the switch is what sends the power to the motor.Electric screwdrivers give you an advantage if you are working in electronics, as they pack power precision with an on and off switch that is convenient to use.

Light assembly applications such as those done with electronics, or medical devices that use intricate work are perfect applications for an electric screwdriver. For more heavy applications like driving screws in hard materials, a power drill is used.

The rotary tool can also hold a small sharpening wheel that works great for sharpening knives, shears, scissors, and more. When you set the speed to high, make sure you turn the tools away from you, as it will create sparks as it sharpens.

The dictionary describes a jigsaw as a portable power saw that incorporates a reciprocating blade. This saw can be used in a variety of tasks depending on the kind of cut you need.

The jigsaw is also a fine-toothed power tool that has a narrow blade and will cut out curved outlines for you.A jigsaw is considered a grandmaster at cutting shapes in a range of materials, including drywall. It is also able to make bevel and compound cuts in boards and other materials.

There are a variety of designs and they vary according to the saws speed, and power. The designs also differ from the less powerful portable version to the handheld models that resemble the cordless drill, all the way to the corded models designed for the demolition work or construction site jobs.

The power tool known as the circular saw uses an abrasive or toothed disc or blade to make different cuts in material with a rotary motion that spins around an arbor.

The circular saw is commonly powered by electricity, but some models are powered by an engine or hydraulic motor to allow it to be fastened to heavy equipment so the need for separate energy sources is eliminated.

Standard or power miter saw — This miter saw is a powered version and will make straight crosscuts on your project using a wide range of angles. These saws commonly make forty-five-degree straight cuts used for framing documents, pictures, or other prized and important pieces.

A band saw is a fixed power tool that has a sharp, long blade that has a continuous band of toothed metal that is stretched between two or more wheels and cuts materials.

Most of the band saws you will see have two wheels that rotate in the same plane. One of the wheels is typically powered, however, some have three and sometimes four that will distribute the load.

Contractor model table saws — are heavier and much larger table saws. These models are attached to a base or stand, and often have wheels attached to the base for ease in moving were needed to be used. These models are also used by homeowners and hobbyists as they have a standard electrical circuit that gives adequate power to operate them.

Some models of this power tool allow you to cut angles other than at ninety-degrees, which will greatly speed up your assembly of projects such as making cabinets.

An angle grinder is sometimes called a disc grinder or side grinder and is a portable hand power tool. It is used to grind and polish, and although designed as a tool for rigid abrasive discs, it has an interchangeable source of power that allows for a wide variety of attachments and cutters.

When choosing an angle grinder, you want to make sure it has the right disc size and has a powerful motor. You will also want to check the power source, RPMs, and arbor size.

The shop vac has a much more powerful motor than the house-cleaning vacuum models, and they often need to be flipped and lifted in order for you to empty the dirt from them. Another major difference is the filter system. Household vacuums have good filters to improve air quality, and the shop vac does not have a filter system.

Some of these power tools are as large as 0.7 by 1.2 (2 ft. 4 in by 3 ft 11 in). There is often a significant amount of sawdust created with the use of belt sander. For this reason, most of these tools are equipped with a form of the dust collection system. Some of the dust collection systems are as simple as a cloth filter bag.

The random orbital sander uses from an eighty grit to a one-hundred-sixty grit range. They are a delicate tool when compared to some of the power sanders on the market, however, compared to the palm sander, they are almost brutish and significantly larger.

The random orbital sander can typically be held and operated with one hand, however, there are a few models that are more powerful and will require the use of both hands.

The blade protrudes beyond the base plate. As a power tool, a wood router has an electric motor. The hand-held versions today are most often called a router plane, and this power tool is considered one of the most versatile woodworking power tools on the market.

Some of the models have a soft-start feature so their speed can be built up slowly. This is a desirable feature for the routers with a large cutter. They can hold a three-horse power router and be able to turn it on without the soft-start would be dangerous.

Wood routers have numerous uses, and with the multitude of bits and jigs with this power tool, makes them capable of creating mortises, tenons, dovetails, moldings of infinite varieties, cutting circles, making raised panel doors and frames, and much more.

These construction power tools are typically operated by compressed air, electromagnetism, propane, butane, or for the powder-actuated tool variety, a small explosive charge.

These air tools are used in building or construction work and include tools such as jackhammers, power hammers, air impact wrenches, air sanders, and grinders to just name a few.

An air compressor is able to pump high-pressure air into gas cylinders to supply divers and help power pneumatic tools. Air compressors are also useful for homeowners and there are special air compressors that are used for inflating tires.

Air compressors are typically powered by electricity or gas. These machines are used in manufacturing plants, gas stations, construction sites around the country, as well as in many residential garages.

They have become increasingly popular in home workshops, garages and basements. The air compressor can be used to operate a number of power tools, including spray guns, wrenches, nail guns and many more.

Most of these machines have a crankshaft that connects pistons or rods, a cylinder, and a valve head. The air is driven out of the tank, and to the power tool.

If you use an air-nailer, the air compressor is ideal for powering them. These machines also make it easy to complete spray-painting jobs, and if you are considering a paint job for kitchen cabinets, this is exactly what you looking for to achieve smooth, well-done painting.

This list of twenty-five power tools shows you the incredible amount of work that can be accomplished with these machines that will save you a lot of time and physical labor.

Power tools have multiply users and use both in the home and industrial establishments. Two of the top advantages of using these handy machines are they get your work done at a reasonable speed and they are more effective than other tools.

Hi there! My name is Jack and I write for ToolsOwner. I have a passion for everything related to tools and DIY projects around the house. You often find me in my workshop working on new projects.

Normally, domestic power tools (like a drill, a blower, or a grinder) could be bought between $25 and $100 USD, meanwhile, industrials’ (like big table saws, or industrial air compressors) can start at$150 and go up to $10.000.

Please note these prices are estimates and might shift according to many factors includingthe tool itself, its type, brand, and features.If you want more specific information,below we’ll break the price and function for each of the most crucial power tools.

Paying a plumber, a mason, or anybody else to perform these jobs could turn expensive, and you’d be surprised by how simple this works could have been, if you had the right tools; saving you thousands, as reviewed in.

So, in case you want to save a budget for power tools in order to make your own housework (or any other reason), here you’ll find a compilation of the most essential power tools and their prices.

Meanwhile, oil-lubricated gas-powered compressors are usually bigger, and more expensive. You can find them between $1200 and $2200 for a 10-gallon tank, going up to $5000 for bigger ones used for industrial purposes.

These babies are literally used for hundreds of purposes. They power pneumatic tools, like nail guns, chisels, drills, sanders, or spray guns. Blowing up inflatable products, adding air to tires, cleaning crevices and tight spaces, are just a few ways you can use this equipment.

The price will vary according to different factors; mainly the tank size, the power source (gas or electric), its max PSI and if it’s oil-lubricated or oil-free.

Their price will be different according to several factors. In this case, power, speed, extra features like hammering, or adjustable chuck, and if it’s corded or cordless.

These guys are the soul of the party at power tooling. They are basically used to drill holes, though you shouldn’t underestimate the importance of hole making.

On this occasion, the prices change according to the type (standard, compound, dual-compound, or sliding-compound). There are also chop saws for metal cutting, which are naturally more expensive as they require more power.

There aren’t many features that make the price vary beside the blade size, and its power. It can go from $60 to $150 for domestic use and go up to $350 for heavy-duty use.

If you are looking forward to getting yours, you should be saving between $40 (for 4 to 5 inches disc) and $120 (bigger disc and more power). It all depends on your needs.

The favorite tool of many, masons, carpenters, and even mechanics, angle grinders are versatile tools that can grind metal and cut tile, stucco, and pavers, rout out mortar, plus they can sand, polish, and sharpen. Due to their versatility, they are considered a basic power too

A sander is a power tool used to smooth surfaces with sandpaper. It has the means to attach the sandpaper and a mechanism to move it rapidly. It includes means to hand-hold it or fix it to a workbench.

If you are looking for high quality power tools (with warranty) to use in the most demanding jobs in the area, you can visit our store and choose (at the most reasonable price) the tools you want.

Welcome to Bosch Blue. This is the website of the professional blue power tools from Bosch – for trade and industry professionals. The Power Tools Division of the Bosch Group is the world market leader for power tools and power tool accessories. The core success factors are innovative strength and pace of innovation. As a professional, a lot is expected of you: speed, reliability, competence, endurance – in short: excellent results. So isn"t it only fair to demand the same from your power tools? The professional blue power tools from Bosch are engineered for excellence – meeting the highest standards in speed, precision and robustness for great, professional work results. Professional blue power tools from Bosch – For professionals from professionals.

In this infographic, the size of each company’s hand & power tool revenue is shown by circle area. Stanley Black & Decker is inside the biggest circle because it has the largest revenue from hand & power tools. Close behind is Bosch’s hand and power tool business. And so on until we reach Positec, JPW Industries and Ingersoll Rand with the smaller circles representing their smaller respective revenues.

Statista.com is a data analysis website that has a wide range of free and premium industry reports, statistics and analysis. The most interesting tidbit we found investigating hand and power tools is this:

Most of the companies (who make and who own tool brands) sales figures are available in tax forms and company annual reports. But even with that information some estimations have to be made to arrive at the tools only sales numbers. Here are some notes how we arrived at estimations for the following companies.

The Bosch annual report tells us their Consumer Goods division had 17.1 billion euros revenue (~18.5 billion USD) in 2015. The division consists of power tools (drills, jigsaws, impact screwdrivers, lawn mowers, best pressure washers etc.) and household appliances (fridges, washing machines, dryers, ovens etc.).

The household appliances portion of the Bosch Consumer Goods division was a 50:50 joint venture with Siemens until Bosch bought out Siemens for 3 billion euros (~3.25 billion USD) in late 2014. That was for the 50% share that Siemens owned, valuing the total household appliance company at 6 billion euros (6.5 billion USD). The company reported 10.5 billion euros revenue in 2013. So what’s the 2015 revenue to give us the portion that is power tools? With a growth rate of 4% yearly the revenue is 11.36 billion euros in 2015 leaving 5.74 billion euros (~$6.2B USD) as power tools revenue.

You’ll notice there is an ‘Other’ row in the above table. In that row are Home Depot, Lowe’s and Harbor Freight Tools. Since these companies don’t manufacture their own tools they were not included in the above infographic. However, they still collect substantial revenues from the global tool market with their home brand tools – Husky, Kobalt and US General, for example.

Looking at Home Depot and Lowe’s, we estimated both companies are collecting around $500M for home brands and $4.5B from selling other companies brands on their shelves. This estimate came from looking at their online stores portion of products that are home brand vs. external brands in the tools & hardware categories. When you include cost to purchase the home brand tools from the OEM and the consignment cost of the external brands’ tools, the cut they get of the total is probably around 30%. That gives Home Depot and Lowe’s somewhere close to $1.5B in global tool market revenue each. And leaves Harbor Freight around the same.

In this graphic, the outer rectangles contain logos of brands owned by the parent companies in the middle. Not all brands owned by the parent companies are in the rectangle – just the most well-known. Hilti and Makita only sell tools under their own names. Take a look. What brands owned by parent companies surprise you?

The Home Depot, Lowe’s and Harbor Freight are not original equipment manufacturers (OEMs) or original design manufacturers (ODMs). They are purchasing companies who form partnerships with OEMs and ODMs (like Stanley Black & Decker) to get their tools made for them to distribute under their own brand names.

In many tool categories these big-box hardware stores simply buy from an OEM and slap their Husky, Kobalt or Drillmaster stickers on the product for sale. In other categories, they approach ODMs with specific product specifications and then work with them to get the tool built to their specs. Exactly which categories of Husky, Kobalt and Harbor Freight tools are ODM or OEM is impossible to find in their tax documents or annual reports.

Bosch’s Consumer Goods division sells power tools and household appliances. They own many brands in both industries. Their Global HQ is in Gerlingen, Germany. It is 9km west of Stuttgart.

Fortive Corp. spun out from Danaher Corp. in 2016 to become its own company. It is foremely the Tools & Measurement division of Danaher. It operates out of the Fluke Corp. headquarters in Everett, Washington.

Hilti is still a family owned company based in Schaan, Lichtenstein. They are known for their professional tools and are very popular throughout the world. Hilti has more than 23,000 employees.

Makita is a large power tool manufacturing company based in Anjo, Japan. They are well-known for their rechargeable power tools and were the first to produce a rechargeable drill. They introduced it in 1969.

Snap-on is best known as the company / tool brand that visits you at work with a van full of tools for you to buy. They started as a socket wrench company and now offer a wide-range of tools for professionals in the automotive, aviation, marine and railroad industries. The Snap-on Global HQ is in Kenosha, Wisconsin.

Emerson Electric is a massive company with a sizeable tools business. They are best known for their process-automation products and services (valves, regulators, measurement & analytical instruments). The Emerson Global HQ is in Ferguson, Missouri.

Harbour Freight buys their tools direct from manufacturer and then offer them as home brands for affordable prices. Here is a selection of the brands they own and sell under:

Hitachi Koki operates as a subsidiary to Hitachi, Ltd. Hitachi Koki manufactures and sells power tools and power equipment. It has HQ in Tokyo, Japan.

Textron is a diversified manufacturer in aircraft, industrial and automotive products. Within their industrial segment they make tools and equipment and sell them under the brands shown here:

The Home Depot owns two home brands in the tools category. They also exclusively sell brands of power tools and equipment such as Ryobi and WORX. Overall, they have sales of hand and power tool/equipment over $5 billion per year.

Ideal Industries is based out of Sycamore, Illinois. Ideal Industries is now well-known for their Pratt-Read, Western Forge brands and SK Tools brands, which they acquired in three separate deals in 2010. It is rumoured they paid ~$50 million for Western Forge and a fair bit less for Pratt-Read.

JPW Industries is based out of La Vergne Tennessee. It was originally known as Walter Meirer Manufacturing, Inc., and represented the tools arm of Swiss based Walter Meier AG. In 2013, Tenex Capital Management purchased Walter Meirer Manufacturing, Inc. and named it JPW Industries to represent the three main brands – JET, Powermatic and Wilton.

Who makes Ryobi tools? Techtronic Industries (TTi) is the OEM for Ryobi. TTi owns the Ryobi brand of power tools in North America, Europe, Australia and New Zealand. They are sold exclusively at The Home Depot in United States. Ryobi Limited, which sold the power tools businesses to TTi in 2000/2001, is a Japanese company that sells power tools, die castings, hardware and printing equipment in Asia, Latin America, Middle East and Africa

Who makes Kobalt tools? Chervon the Chinese OEM (not Chevron the oil company) makes many of Kobalt’s power tools. In 2016, Lowe’s awarded them a vendor award in innovation for the Kobalt 24-Volt cordless power tools. Sunrise Global/Greenworks Tools is the OEM for Lowe’s Kobalt cordless 80-volt outdoor power equipment (they were awarded 2015 innovation award).

What happened to Danaher the tool maker? Danaher spun out their tool and power tool brands and OEM capability to a company called Fortive Corp. in 2016. Danaher tools are now Fortive, essentially. Fortive operates out of the Fluke HQ just north of the Boeing Everett Factory.

Where are Milwaukee tools made and who owns Milwaukee brand? Dongguan, China. In Aug-2004, TTi Group acquired two divisions (Milwaukee Electric Tools and AEG Power Tools brands) of Atlas Copco’s Industrial Technique business for a total sum of $627 million ($797 million in 2016 dollars). By 2004, all of Milwaukee’s tool production facilities had left Wisconsin for Mississippi. And in 2008, when TTi opened their massive Dongguan facility, the move for Milwaukee Electric Tools from U.S.A. to China was complete.

Who makes Snap-on tools? Snap-on makes Snap-on tools. Snap-on is an original equipment manufacturer (OEM) and they make tools in their vast production facilities.

Who makes Ridgid tools and who owns the brand? TTi Group makes Ridgid brand tools through a partner agreement with Emerson and their OEM subsidiary One World Technologies. They first entered into an agreement in 2003 for TTi to make Ridgid woodworking power tools (and have since furthered the partnership to other tool categories). Ridgid has been a subsidiary of Emerson Electric since 1966. The brand is targeted at plumbers and heating ventilation and air conditioning (HVAC) trades.

When did Stanley and Black & Decker merge? Officially, Stanley Works acquired Black & Decker for an all stock deal worth $4.5 Billion ($3.5B stock and $1B debt), which was announced in Nov-2009. The “merge” was finalized in Mar-2010. At the time Stanley Works owned the popular brands Stanley, Facom, Bostitch, Proto, Mac Tools, Vidmar (and others) and Black & Decker owned Black & Decker, DeWalt, Porter-Cable, Baldwin, Emhart, Kwikset, Price Pfister (and others). The combination of the two created a tool and equipment powerhouse valued at nearly $10B.

Who makes Husky tools? Husky is a home brand of Home Depot. The tools are made by various OEMs including Stanley Black & Decker, Western Forge and Apex Tool Group.

Who owns DeWalt tools brand? DeWALT is owned and made by Stanley Black & Decker. Black & Decker owned DeWALT since 1960. In 2010, when Stanley Works and Black & Decker merged the new company, Stanley Black & Decker, became the owner of DeWALT.

Who makes and owns Craftsman tools? Craftsman tools are made in factories around the world. Depending on the tool category, it could be made in USA, Mexico, India, Honduras, Japan, Taiwan, China, Germany or France. Many manufacturing companies have been contracted to make different tools for Craftsman over the years. These include: TTi Group, Stanley, Apex Tool Group, Western Forge, Easco, Danaher and Pratt-Read. Sears, the creator of the Craftsman brand, never made Craftsman tools – they owned the brand. In 2016, Sears sold the brand to Stanley Black & Decker for $900 million. With the sale, it is more than likely all manufacturing of Craftsman Tools moving forward will be done in Stanley Black & Decker manufacturing plants.

We have invested millions of dollars in our own test labs and factories, so our tools will go toe-to-toe with the top professional brands. And we can sell them for a fraction of the price because we cut out the middleman