Standard Pack = 1 piece(s). Arbor Diameter = 3/4 IN ; Fits Shell Reamer = 1 5/16-1 5/8 IN ; Material = High Speed Steel ; Overall Length = 11 IN ; Shank Diameter = 7/8 IN ; Shank Taper = 3 MT ; Shank Type = Straight Shank ; Size = 7 IN ;