Vermont American 23132 1/4-Inch Radius Carbide Tipped Roundover and Bead Router Bit, 2-Inch Ball Bearing 2-Flute 1/4-Inch Shank Razor sharp cutting edge diamond honed for smooth cuts Triple tempered shank for maximum durability Industrial micrograin carbide for smooth cut roundover for decorative edging and drop leaf table joints 2 in 1 bit-extra 3/8-Inch bearing creates beading profile