Chicago-Latrobe - Screw Machine Drill, General Purpose, Series: 157, Imperial, #17 - Wire, 0.173 in. Drill - Inch Decimal, 2-3/16 in. Overall Length, 3XD Depth of Cut, 2 Flutes, Right Hand Spiral Flute, 1-1/8 in. Flute Length, 0.173 in. Diameter x 1.0625 in. L Shank Straight Shank, 118 Degree Point, Radial Point, Right Hand Cutting Direction, HSS Cutting Edge, Bright, Applicable Materials: Alloy Steel, Carbon Steel, Cast Iron and Non-Ferrous Materials