STM, 107506, Prentice Drill Bit, Flatted, 9/16 in Drill - Fraction, 0.562 in Drill - Decimal Inch, 6 in Overall Length, 3 in Flute Length, 1/2 in Shank, Straight Shank, 118 deg Point, Standard Point, Right Hand Cutting Direction, High Speed Steel Cutting Edge, Black Oxide