Sandvik Coromant Step and Chamfer Drill, Series: CoroDrill 860, Imperial, 0.433 in Diameter Minimum Hole, 0.5866 in Diameter Maximum Hole, 4.882 in Overall Length, 2 Steps, 1.299 in Step Depth, 2 Hole, 2 Flutes, SSK Flute, 2.441 in Flute Length, 0.6299 x 1.8897 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