MORSE® Screw Machine Drill, Heavy Duty, Series: 2435, Imperial, #59 Drill - Wire, 0.041 in Drill - Decimal Inch, 1-3/8 in Overall Length, 1/2 in Cutting Depth, Standard Flute, 1/2 in Flute Length, 0.041 in Shank, Straight Shank, 135 deg Point, Split/Self-Centering Point, Right Hand Cutting Direction, M42 Cobalt Cutting Edge, M42 Cobalt, Bright, Applicable Materials: Ferrous Casting, High Alloy Steel, Inconel, Stainless Steel, Titanium and Other Difficult-to-Drill Material