Master 12" (212 Size) 3 Jaw Power Chuck, A-8 Mount, 1.5 x 60 Deg Serrated Jaws

Master 12" Power Chuck (212 size) by Auto-Grip     Direct replacement for the trademarked chucks:          Kitagawa     B-212            SamChully  HS-12          Chandox     OP-212          Strong         N-212          and other brands with similar dimensions and jaw serrations.         NOTE:  Chuck comes with A2-8 Spindle mounting adapter and can be converted to a Standard plainback chuck by removing adapter mounting bolts Specification / Dimensions (see Illustration) : Nominal Size : 12" Model : MG12A8 Mount : A8 A : 304 mm (12 in) F : 91 mm (3.58 in) B : 122 mm (4.80 in) K max Thread : M100x2 Jaw Stroke : 5.3 mm (0.209 in) Max Grip : 143.6 KN ( 32,282 lbs) Max D-Tube Pull : 54.9 KN ( 12,342 lbs) Max RPM : 3300 Mass : 59.5 kg (131 lb) T-Slot : 21 mm (0.827 in) DT Stroke : 23 mm (0.906 in) C : 220 mm (8.66 in) D : 171 mm (6.75 in) D1 : 139.72 mm (5.50 in) D2 : 190 mm (7.48 in) E : 6 mm (0.236 in) E1 : 18 mm (0.709 in) G Max : 26 mm (1.023 in) G Min : 3 mm (0.12 in) H : 28 mm (1.102 in) J : 50 mm (1.968 in) L-1 : 25 mm (0.984 in) M : 51 mm (2.00 in) N : 130 mm (5.12 in) P : 30 mm (1.18 in) Q Max : 45.8 mm (1.803 in) Q Min :  15.8 mm (0.662 in) R Max : 61.3 mm (2.413 in) R Min : 56 mm (2.205 in) S : 50 mm (1.968 in) U : 3-M8 L : 6-M16