For many years here at Flex Coat we have used a tool made from a polished cow bone for burnishing and packing thread. This material seems to be the perfect hardness for working your wrap without damaging the thread or blank. Ergonomically s...
Reviews
5.0
24 ratings
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Flex Coat Bone
Wow I tried several burnishing tools trying to find the right one. I bought this one from Mudhole and wished I had started with it. It sure makes this nice and smooth. I love it!!! A must have tool for rodbuilders.
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Pat · February 11, 2026
Excellent burnishing tool!
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Darin · April 12, 2026
Flex coat bone burnishing tool
Works great flattens the thread well give a great appearance.