Chicago-Latrobe Screw Machine Drill, Heavy Duty, Series: 159, Imperial, 9/32 in Drill - Fraction, 0.2812 in Drill - Decimal Inch, 2-11/16 in Overall Length, 3XD Cutting Depth, 2 Flutes, Right Spiral Flute, 1-1/2 in Flute Length, 9/32 in Dia x 1-3/16 in L Shank, Straight Shank, 135 deg Point, Split Point, Right Hand Cutting Direction, HSS Cutting Edge, HSS, Black Steam Oxide, Applicable Materials: Alloy Steel, Carbon Steel, Cast Iron and Tool Steel