Chicago-Latrobe - Jobber Length Drill Bit, Heavy Duty, Series: 550-TN/2550, Imperial, 7/64 in. Drill Bit - Fraction, 0.1094 in. Drill Bit - Decimal, 2-5/8 in. Overall Length, 1-1/2 in. Depth of Cut, 2 Flutes, Right Hand Spiral Flute, 1-1/2 in. Flute Length, 7 in. /64 in. Diameter x 1 in. L-Shank, Straight Shank, 135 Degree Point, Split Point, Right Hand Cutting Direction, M42 HSS-Co 8% Cutting Edge, TiN Coating, Applicable Materials: Alloy Steel, Tool Steel, and Stainless Steel