Chicago-Latrobe - Screw Machine Drill, Heavy Duty, Series: 559-TN/2559, Imperial, 9/64 in - Fraction, 0.1406 in - Decimal Inch, 1-15/16 in Overall Length, 15/16 in Depth of Cut, 2 Right Hand Spiral Flutes, 15/16 in Flute Length, 9/64 in ID, 1 in L Shank, Straight Shank, 135 Degree Point, Split Point, Right Hand Cutting Direction, M42 HSS-Co 8 Cutting Edge, M42 HSS-Co 8, TiN Coating, Applicable Materials: Carbon Steel, Cast Iron and Tool Steel