Latrobe Chicago Screw Machine Drill, General Purpose, Series: 157, Imperial, #19 - Wire, 0.166 in. Drill - Decimal Inch, 2-1/8 in. Overall Length, 3XD Depth of Cut, 2 Flutes, Right Hand Spiral Flute, 1-1/16 in. Flute Length, 0.166 in. Diameter x 1.0 in. L Shank, Straight Shank, 118 Degree Point, Radial Tip, Right Hand Cutting Direction, HSS Cutting Edge, HSS, Bright, Applicable Materials: Alloy Steel, Carbon Steel, Cast Iron and Non-Ferrous Materials