Sandvik Coromant Step and Chamfer Drill, Series: CoroDrill 860, Imperial, 0.1968 in Diameter Minimum Hole, 0.2677 in Diameter Maximum Hole, 3.11 in Overall Length, 2 Steps, 0.591 in Step Depth, 2 Hole, 2 Flutes, SSK Flute, 1.181 in Flute Length, 0.3149 x 1.4173 in Shank, Cylindrical Shank, 147 deg Point, Split Point, Right Hand Cutting Direction, Solid Carbide Cutting Edge, Solid Carbide, PVD TiAlN Coated, Applicable Materials: Steel, Stainless Steel and Aluminum