Task Tools T24272 Corner Round and Beading Router Bit with 1/4-Inch Shank, 1-1/2-Inch by 3/4-Inch Carbide Height, 1/2-Inch Radius Corner round and beading router bit with 1/4-inch heat-treated, hardened steel shank; double flute for quick cuts Dynamically balanced up to 24,000 RPM to reduce vibration and kickback Non-stick powder coat finish reduces friction and resin build-up to protect from corrosion Premium quality Super Fine Grain Tungsten Carbide for an exceptionally smooth finish Size: 1-1/2-inch diameter by 3/4-inch carbide height; 1/2-inch radius