Latrobe Chicago Screw Machine Drill, General Purpose, Series: 157, Imperial, #39 - Wire, 0.0995 in. Drill - Decimal Inch, 1-13/16 in. Overall Length, 3XD Depth of Cut, 2 Flutes, Right Hand Spiral Flute, 13/16 in. Dia. x 1 in. Long Flute Length, Straight Shank K, 118 Degree Point, Radial Tip, Right Hand Cutting Direction, HSS Cutting Edge, Bright, Applicable Materials: Alloy Steel, Carbon Steel, Cast Iron and Non-Ferrous Materials