Chicago-Latrobe - Screw Machine Drill, General Purpose, Series: 157, Imperial, #38 Drill - Wire, 0.1015 in Drill - Decimal, 1-13/16 in Overall Length, 3XD Depth of Cut, 2 Flutes, Right Hand Spiral Flute, 13/16 in Flute Length, 0.1015 in Diameter x 1 in L 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