Standard Pack = 1 piece(s). Cutter Diameter = 1.149 inch ; Flute Length = 2 1/8 inch ; Material = High Speed Steel ; Number of Flutes = 4 ; Overall Length = 7 3/4 inch ; Pilot Diameter = 0.765 inch ; Screw Size = 3/4 inch ; Shank Diameter = 3/4 inch ;