Standard Pack = 1 piece(s). Flute Length = 1 5/16 IN ; Flute Type = Helical Flute ; Large End Diameter = 0.1142 IN ; Material = High Speed Steel ; Overall Length = 2 5/16 IN ; Shank Type = Straight Shank ; Size = 4/0 IN ; Size Type = Wire Gage Size ; Small End Diameter = 0.0869 IN ;