5 Pc Stone Rotary Grinding Bits with 1/4 in. Shank - Harbor FreightAmazing deals on this 5Pc Stone Rotary Bits 1/4In Shank at Harbor Freight. Quality . Durable and easy to use, this versatile set includes tree, cone, large cone,.rotary conical for stone,7 Facts About Tungsten Carbide Burrs and How to Use ThemApr 18, 2016 . Carbide Rotary Burrs are used for cutting, shaping, grinding and for the removal of sharp edges, burrs and . For carving into stone you would ideally use a Diamond Burr. . Tungsten carbide round nose or ball nose cone burr.
rotary conical for stone