how do you cut heavy spacer materials?

[John in WI]

the other day I picked some really heavy cardboard material out of the recycling dumpster at work. It was used as the divider material that keeps 4 1-gallon jugs separated in the box without clinking together.

It's very sturdy stuff and approaching 1/4" in thickness. I picked it up thinking it would make a good spacer material for custom buckshot or round ball loads.

I nearly broke my girl's heavy kitchen shears trying to cut it, and my tin snips isn't doing a very good job. How can I cut nice 12-gauge sized discs from it? I'm thinking some kind of hole saw to use on my drill press. But I'm not aware of any hole saw that small, or one that doesn't have a pilot drill bit running through the middle of it.

How did the "old timers" do it?

[Chicken Thief]

Anglegrinder!
Fast and dirty ;)

[shotman4]

check guy on feebay listed today
lookunder reloading new listing he has a 12 ga but can make anything you want
I have a couple he made and they are good

[Johnch]

A hole saw mounted in a drill press
Take out the center bit

My 3/4" hole saw works , as the teeth take enough off

John

[John in WI]

Hi John--I was wondering about that. It just dawned on me that 3/4" is the OD of the hole saw, so the ID would be be small enough that it should be about a perfect fit for a 12ga hull.

I just wasn't sure if they made hole saws that small.

[P.K.]

A hollow leather or gasket punch should do just fine. A 12 ga. AA wad is about 5/8" across at the base.