Chicago-Latrobe® Taper Shank Drill Bit, General Purpose, Series: 110, Imperial, 1/4 in Drill - Fraction, 0.25 in Drill - Decimal Inch, 6-1/8 in Overall Length, 2-7/8 in Cutting Depth, 2 Flutes, Spiral Flute, 2-7/8 in Flute Length, #1 Morse Taper Shank Taper Designation, 118 deg Point, Radial Point, Right Hand Cutting Direction, HSS Cutting Edge, No Through Coolant, HSS, Black Oxide/Steam Oxide, Applicable Materials: Alloy Steel, Carbon Steel, Cast Iron and Tool Steel