overshot card punch made in china

2. You need to cut discs of appropriate size. “Hollow Punch” chisels are available at HarborFreight and elsewhere (not at HD or Lowes… checked yesterday when I bought these).

Perfect for application and 28ga; I need a .55-.59 (14 or 15mm) cutter for 20ga though. The 20ga shell I did up above was “firm”, but it’s juuuust in there–I could move it with a screw driver to the side and pop it out. It really needs to be .57-.59″ to sit snugly underneath the roll crimp for 20ga. Here’s a plug cutter that is 5/8″, or .625, that’s just a bit too big but would cut plastic too. You want 9/16 punch or 14 or 15 mm.

Anyways, with a fat 20ga roll crimp (this was my first ever, on Win universal which is thin walled), this would work for 20ga; and certainly works good for 28ga. I’m tired of tool searching so I’ll leave someone else to find a 14 or 15mm hollow punch you can chuck in a drill for the “perfect” 20 OS.

I thought this could be a good thread to list the other parts/tools for making homemade fillers like OS cards, wad inserts of felt and thick cardboard. Here’s the ideas I’ve read or come up with:

Here’s a link to larger hollow punch, it has 9/16 (.56″) and 5/8 (.625). The 9/16 should work for 20ga OS while the 5/8 for 20ga nitrocards (used for 12ga load spacers).

Hobby Lobby claimed to have a “Large hole punch set” for $7 with 5/8″ size… but this was a goose chase, she fibbed to me on the phone, it was just 8mm.

I ordered the 15mm hollow punch chisel from ebay I listed up above. It was $4.39. It shipped from China and arrived in less than 2 weeks. It looks good and is decent quality.

For the other punches listed up above, after hammering out 100 cork discs or so on a piece of pine, it seems to me the cutting edge is getting dull on the 1/2″ one.

For the plastic OS discs, you need to chuck the cutter, (rotating plug cutter or drill type hollow punch shown above) into a drill, my drill press will accept the 1/2″ punch and use it as a drill too.

I got an idea on the internet from a post by guy named “BT Justice” of a way to hold the punches if they don’t chuck in your drill– use a shotgun hull with a bolt through the primer hole to chuck into the drill, and then shove the punch into the end of the hull to hold it.  I know BT has indicated he’s been miffed when ideas aren’t given proper attribution, so want to be sure I do mention– that was his idea.  Using a punch set to make wad fillers is of course an idea that hundreds of folks have thought up, besides me, on the internet.    BT made a post back in 2011 apparently talking about using meat tray styrofoam as a wad filler, so I hereby give full credit to all concepts about using a punch with a meat-tray to him!  I got the punch set idea from Cerberus on ShotGunWorld though.

A great guy who goes by the moniker “lostknife4” produces some beautiful looking roll-crimped shells, and puts a nice round label over the OS card.  A lot of folks liked it, and here’s what Lost said about how he made the labels:

Place an overshot card on top of the shot charge just before crimping to improve overall crimp quality and seal in small shot and/or buffer. Excellent for use with Ballistic Products Roll Crimp tools.

Alot of mterials are used for over powder wads. Coffee Can lids ( LDPE), tablet backing or cardboard, cork, Gasket materials ( Napa rubber fiber gasket material is [popular with alot), Waxed cartoon milk and juice containers, felt, and some others. With shot gun shells the wad stack sets the hieght for the over shot wad crimp to be right or the star crimp to be formed properly. Sometimes one wad is enough sometimes itmay take a stack of several. A simple punch can be made to cut wads. A slightly smaller General leather punch or Arch punch can be honed lapped out to the correct size for your cases. Shoot for .005-.010 over the inside case dia. Wads can then be punched with a hammer on the end grain of a block of wood. 12 gauge is around 72 caliber so a 11/16 punch would be close. A old case can be used but a thin brass case dosnt hold up long as a cutting tool. A piece of steel pipe can be used also.

This punch tool mounts in any Lee Precision single stage press (or press that accepts standard 7/8-14 threaded dies and is fully compatible with Lee Precision shell holders), allowing the operator to produce their own filler wads and overshot cards.  The corrosion-resistant die is made from stainless steel, and will accept material up to 1/4″ thick.  The punch is produced from hardened tool steel, with sufficient material to allow for resharpening if required.  Wads measure approximately 0.650″ in diameter and are suitable for use as filler wads to raise shot column height, or on top of shot columns as overshot cards to achieve professional looking crimps.

This punch tool mounts in any Lee Precision single stage press (or press that accepts standard 7/8-14 threaded dies and is fully compatible with Lee Precision shell holders), allowing the operator to produce their own filler wads and overshot cards.  The corrosion-resistant die is made from stainless steel, and will accept material up to 1/4″ thick.  The punch is produced from hardened tool steel, with sufficient material to allow for resharpening if required.  Wads measure approximately 0.345″ in diameter and are suitable for use as filler wads to raise shot column height, or on top of shot columns as overshot cards to achieve professional looking crimps.

Hollerithcard.scad is a script for generating a 3D printable punch card in IBM 80-column / 12 row format. Holleritchcard.stl was generated using the SCAD script to make a card with a sample message in EBCDIC 3-punch format like an IBM 5081. ... Lace...

You can write your name, most used password (what can go wrong), phone number, favorite joke… on this 16 bytes keyring punch card. If you print many, and thread them, you can even carry an entire book of information.

Poke through and the holes...

I am currently trying different materials for the punch cards in order to minimize wasted air (this is a big problem with the printed punch card, rubber foam is promising). Therefore the distance between the inlet and the pipes has to be adjustable...

The clips, clip the punch card together in order to keep repeating the punch card pattern They can be use on any Brand of machine. ...eg, Brother, Singer, Empisal, Knitmaster etc

The "uncond_cylinder_catch" can be used to unconditionally advance to the next punch card after every read operation (such as in the operation of a simple loom), by mounting it directly on the frame. The "cond_cylinder_catch" and "cylinder catch...

This parts should fit together pretty snugly to form the card cylinder that the punch-card chain gets wrapped around. Tape or glue is probably needed to secure things (I used blue painters tape, and then just punched holes corresponding with the...

Punch-out card of a decorated Christmas tree. ...Available in bank card format and a bigger one with tree being around 10cm that can be added to a post card. 0.8mm thickness for both, which seemed perfect thickness after few tests. Happy holidays...

Punch-out card of a decorated Christmas tree. Available in bank card format and a bigger one with tree being around 10cm that can be added to a post card.

Edit it online https://www.tinkercad.com/things/31Y9hCphhm5 My buddy is in a band and I decided to make these punch out cards for him and his band mates. The thickness is just at 0.80mm so it would be considered a "Medium" pick. This can be adjusted...

... some quick kitbashing in OpenSCAD. The only change to the process is the need to install the rail early in assembly, when the main frame is put together. Instructions Print one of each STL, and install on a 10-Hook Mechanical Punch Card Reader.

This is an overshot/wad card cutting die. Insert this die upside down inside your press using a L-N-L bushing adapter. I"ve made provisions for adding a metal washer or other insert to beef up the cutting area. Reem the metal insert to 18.67mm.

... with the spacer I"ve designed. This allows the clearance necessary for this punch card to be used. You could also use more washers to get the proper clearance.

... with the spacer I"ve designed. This allows the clearance necessary for this punch card to be used. You could also use more washers to get the proper clearance.

... will provide the clearance needed to use the punch cards I"ve designed for US Quarters for making coin rings. US Quarter 1/2" punch card https://www.thingiverse.com/thing:4155703 US Quarter 7/16" punch card https://www.thingiverse.com/thing:4155717