4-MOST USEFUL SET, 1/8th" SHANK SABURR TOOTH tm CARBIDE BURRS. Set contains the 4 most useful Coarse burrs with 1/4" shanks. These burrs rip through wood faster & cleaner than any similar we've tried! Perfect for all shaping uses; in forward or reverse rotation. Unlike other burrs that use a random grit pattern, the carbide barbs are sharper, have lower tooth angle & are structurally aligned in a precise pattern. The result is faster cutting, plus amazing resistance to loading. Made in USA. 1/8" shank. Includes the following burrs: 18BN18 -18BN14 - 18C14 - 18F38