Chicago-Latrobe Screw Machine Drill, Heavy Duty, Series: 559, Imperial, #44 - Wire, 0.086" Bore - Decimal Inch, 1-3/4" Overall Length, 3XD Depth of Cut, 2 Flutes, Right Hand Spiral Flute, 3/4" Flute Length, 0.086" Dia. x 1" Dia. x 1" L Shank, Straight Shank. 135 OD. G Point, Split Point, Right Hand Cutting Direction, M42 HSS-Co 8 Cutting Edge, M42 HSS-Co 8, Straw, Applicable Materials: Alloy Steel, Carbon Steel, Cast Iron and Tool Steel