Freud Forstner Drill Bit - Precision Shear bits bore smooth, flat-bottomed holes. Serrated design produces a unique cutting edge for less splintering and chipping. Hardened steel for longer life. Ultra sharp spur insures accurate hole and resists walking on material. 3-1/2" length. 3/8" shank. - Bit Size: 1", Overall Length: 3-1/2", Shank Diameter: 3/8", Pkg Qty: 1, Package Type: Clamshell