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There length and thickness is marked on each preform
You can watch me knapping a piece of this material on video
As you can imagine these require a bit more work than just cutting and triangles so they are a little more expensive than our regular preforms
Rainy Buttes is a North Dakota chert that interestingly enough is 30% heavier than your typical chert due to its high iron content
Total arrowhead length is 1 1/2"
Page 1 Georgetown Heat Treated Preforms,Flintknapping Slabs. Bopper There length and thickness isThese heat treated Georgetown preforms make beautiful points. . I really do love this material. The preforms are 5 16 to 3 8" thick and ready to knapp. There is a video on my YouTube channel Danny Collins Lithics & Leather showing the point in the listening being knapped. https: youtu. be wlcnGR xysE? si=4kt39OFoWJfN iO5
US$ 25200.00
US$ 38.99
US$ 159.00
US$ 24.99
US$ 1149.00
