Standard Pack = 1 piece(s). Diameter = 5/16, 0.3125 IN ; Finish = Black Oxide; Flute Length = 4 IN ; Flute Type = Standard; Material = High Speed Steel; Overall Length = 6-3/8; Point Angle = 118 Degree; Point Style = Standard; Shank Diameter = 5/16; Shank Type = Straight;