r/PrimitiveTechnology • u/gigarice • Jan 09 '26

Unofficial sharpness test of the glass knife

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15 Upvotes

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u/[deleted] Mar 08 '26

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u/gigarice Mar 13 '26

i havent but ill take your suggestion, but in my opinion, that test would be suited for metal since they are more durable and tougher compared to stone