Task Tools T24308 45-Degree Chamfer Router Bit with 1/4-Inch Shank, 1-3/8-Inch by 5/8-Inch Carbide Height 45-degree chamfer router bit with 1/4-inch heat-treated, hardened steel shank; double flute for quick cuts Dynamically balanced up to 18,000 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: 1-3/8-inch diameter by 5/8-inch carbide height