Standard Pack = 1 piece(s). Collet Capacity Min Inch = 0.3540 ; Collet Capacity Min mm = 9 ; Collet Capacity Max Inch = 0.3940 ; Collet Capacity Max mm = 10 ; Clamping Diameter Max Fraction = .3940 ; Clamping Diameter Max Inch = 0.3940 ; Clamping Diameter Max mm = 10 ;