Chicago-Latrobe - Screw Machine Drill, Heavy Duty, Series: 159, Imperial, #37 - Wire, 0.104 in. Drill - Decimal Inch, 1-13/16 Overall Length, 3XD Depth of Cut, 2 Flutes, Right Hand Spiral Flute, 13/16 Flute Length, 0.104 Dia. x 1 Shank L. Straight Shank, 1 Point 35 Degree, Split Point, Cutting Direction Right Hand, HSS Cutting Edge, HSS, Black Vapor Oxide, Applicable Materials: Alloy Steel, Carbon Steel, Cast Iron and Tool Steel