Notch-O-Matic, Notching Tool Glass There is a video on

There is a video on my YouTube channel Danny Collins Lithics & Leather showing the point in the listening being knapped

These are various verity obsidian preforms and are 5/16 to 3/8" thick and ready to knapp

Each one of these blades take around two hours to cut and require a very large slab and generate a bit of waist

Keokuk comes from North East  Oklahoma and was wildly used by prehistoric people

This is approximately 20+  lbs

Notch-O-Matic, Notching Tool Glass There is a video onIf you watch my YouTube flintknapping videos than you've seen me use Notcho to remove step fractures and notch points many times Notch Os not only a useful tool to have in your arsenal its also a lot of fun sending those nasty hinges across the room.