Chicago-Latrobe - Screw Machine Drill, Heavy Duty, Series: 159-TN/2159, Imperial, #17 Drill - Wire, 0.173 in - Decimal Inch, 2-3/16 in Overall Length, 1-1/8 in Depth of Cut, 2 Spiral Flutes, 1-1/8 in Flute Length Diameter x 1. 0625 in L-Shank, Straight Shank, 135 Degree Point, Split Point, Right Hand Cutting Direction, HSS Cutting Edge, HSS Coating, Applicable Materials: Alloy Steel, Carbon Steel, Cast Iron and Tool Steel