It looks like you have a good start with the knife in your photo. It already has the hole for the bolt. Paper cutter shown.50/50 dark fired/red VA plug-ish
I think I may want to make a dedicated plug cutter to slice more consistent flakes once I get the plug making down.
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18.8US $ |Deli 8051a Manual Paper Trimmer A4 Size 420x360mm(16.5"x14") Plastic Base Paper Trimmer With Scaler Paper Cutter - Paper Trimmer - AliExpress
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