MH-212A08HA 12" 3-jaw, high-speed, mega bore hydraulic chuck with A2-8 adapter plate and M115x2.0 threaded draw nut; 315mm O.D.; 106mm bore; 54 ~ 315mm clamping range; 10.6mm jaw stroke on diameter; 23mm plunger stroke; 144KN maximum static gripping force; 1.5x60° master jaws serration; 3000 maximum rpm; standard equipment for Haas Automation ST-30B