MORSE Screw Machine Drill, Heavy Duty, Series: 2435, Imperial, #54 Drill - Wire, 0.055 in Drill - Decimal Inch, 1-5/8 in Overall Length, 5/8 in Cutting Depth, Standard Flute, 5/8 in Flute Length, 0.055 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