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: 7/8"", 1 1/8"", 1 7/32"", 1 1/4"", 1 3/8"", 7/8"" (Min), 1 3/8"" (Max), Applicable Materials: Most Metals, Stainless Steel, Cutting Direction: Right, Cutting Edge Material: HSS, No, of Flutes: 2, No, of Steps: 5, Shank Diam: 3/8"", Spiral Angle: 0 Straight, Step Depth: 1/8"", Tool Shape: Tree - Step Drill, SKU: ORSNO63522