Chicago-Latrobe Screw Machine Drill, Heavy Duty, Series: 159, Imperial, #34 - Wire, 0.111 in. Drill - Decimal Inch, 1-7/8 in. Overall Length, 3XD Depth of Cut, 2 Flutes, Right Hand Spiral Flute, 7/8 in. Flute Length, Dia. x 1 in. L, Straight Shank, 135 OD. G Point, Split Point, Cutting Direction Right Hand, HSS Cutting Edge, HSS, Black Vapor Oxide, Applicable Materials: Alloy Steel, Carbon Steel, Cast Iron and Tool Steel