Kershaw Knife Thumb Safety by The_Curmudgeon - Thingiverse - Kife thumb safety
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The Chef's Thumb® is the new, revolutionary kitchen device that protects your thumb in the kitchen, every time you grab a knife you are putting your thumb at risk. Viper Bite technology grips and stabilizes the cutting surface, ensuring safe. I own a Kershaw pocket knife (Ken Onion design #) with "assisted opening". Much to my dismay, the safety broke without me noticing it, w.