Standard Pack = 1 piece(s). Center Diameter = 0.63 IN ; Clamping Diameter = 1.969 IN ; Height = 0.945 IN ; Inside Diameter = 1.102 IN ; Nose = - ; Series = 680-12 ; Size = 9.5 x 3.2 mm ; Turning Diameter = 2.008 - 3.937 IN ; Type = Right Hand Rotation Driving Disc ;