Cle-Line® Jobber Length Drill Bit, Heavy Duty, Series: 1802, Imperial, 25/64 in Drill - Fraction, 0.3906 in Drill - Decimal Inch, 5-1/8 in Overall Length, 5XD Cutting Depth, 2 Flutes, Right Spiral Flute, 3-3/4 in Flute Length, 25/64 in Dia x 1-3/8 in L Shank, Straight Shank, 135 deg Point, Split Point, Right Hand Cutting Direction, M42 HSS-Co 8% Cutting Edge, No Through Coolant, M42 HSS-Co 8%, Straw Oxide, Applicable Materials: Nickel, Cobalt, Titanium, Iron, Alloy Steel, Carbon Steel, Low Carbon Steel, Gray Cast Iron, Nodular Cast Iron, Aluminum and Hardened Steel