Standard Pack = 1 piece(s). Flute Length = 6 1/16 IN ; Flute Type = Spiral Flute ; Large End Diameter = 0.6066 IN ; Material = High Speed Steel ; Overall Length = 8 5/16 IN ; Shank Type = Straight Shank ; Size = 9 IN ; Size Type = Wire Gage Size ; Small End Diameter = 0.4805 IN ;