Guhring NC Spot Drill, Series: 559, 15.87 mm Diameter, 186 mm Overall Length, 13.695 mm Cutting Depth, 2 Flutes, 37.5 mm Flute Length, 15.87 mm Shank, Straight Shank, 90 deg Point, Relieved Cone Point, Right Hand Cutting Direction, HSS Cutting Edge, HSS, Bright, Applicable Materials: Aluminum, Cast Iron, Hardened Steel, Other Non-Ferrous Metals, Steel, Stainless Steel and Titanium Alloys