Feature high speed steel construction and steam oxide coating, Patented design two cutting flutes allow for clean burr-free holes, Cust through materials faster than standard bits, Eliminates the problem of tip breakage on standard drill bits, Cutting Diam: 1/4"", 5/16"", 3/8"", 7/16"", 1/2"", 9/16"", 5/8"", 11/16"", 3/4"", 1/4"" (Min), 3/4"" (Max), Applicable Materials: Most Metals, Stainless Steel, Cutting Direction: Right, Cutting Edge Material: HSS, No, of Flutes: 2, No, of Steps: 9, Shank Diam: 3/8"", Spiral Angle: 0 Straight, Step Depth: 1/8"", Tool Shape: Tree - Step Drill, SKU: ORSNO63519