Chicago-Latrobe Taper Length Drill, General Purpose, Series: 120, #75 Drill - Wire, 0.021 in Drill - Decimal, 1-1/2 in Overall Length, 5/16 in Depth of Cut, 2 Flute, Spiral Flute, 5/16 in Flute Length, 0.021 in Shank, Straight Shank, 118 Degrees G-Point, Radial Point, Right Hand Cutting Direction, HSS Cutting Edge, HSS, Black Oxide, Applicable Materials: Alloy Steel, Carbon Steel, and Cast Iron