Chicago-Latrobe Taper Length Drill, General Purpose, Series: 120, #61 Drill - Wire, 0.039 in Drill - Decimal, 2-1/4 in Overall Length, 1-1/8 in Depth of Cut, 2 Flute, Spiral Flute, 1-1/8 in Flute Length, 0.039 in Shank, Straight Shank, 118 Degree Point, Radial Point, Right Hand Cutting Direction, HSS Cutting Edge, HSS, Black Oxide, Applicable Materials: Alloy Steel, Carbon Steel, and Cast Iron