Chicago-Latrobe - Screw Machine Drill, Heavy Duty, Series: 559, Imperial, #33 - Wire, 0.113 in. Drill - Decimal Inch, 1-7/8 O.D., 3XD Depth of Cut, 2 Flutes, Right Hand Spiral Flute, 7/8 in. Flute Length, Dia. x 1 in. L, Straight Shank, 135 O.D. G Point, Split Point, Cutting Direction Right Hand, Cutting Edge M42 HSS-Co 8, M42 HSS-Co 8, Straw, Applicable Materials: Alloy Steel, Carbon Steel, Cast Iron and Tool Steel