Standard Pack = 1 piece(s). Center Diameter = 0.63 IN ; Clamping Diameter = 2.48 IN ; Height = 0.945 IN ; Inside Diameter = 1.614 IN ; Nose = - ; Series = 680-22 ; Size = 9.5 x 3.2 mm ; Turning Diameter = 2.520 - 4.961 IN ; Type = Left Hand Rotation Driving Disc ;