We have 5 sets of 1250mm 4-jaw indepent chucks with A2-15 mounts in stock for immediate shipment. This 1250mm 4-jaw independent chucks can be mounted on lathes with A2-15 spindle noses perfectly. Chuck base are made of high-density, high-strength cast iron, and top jaws are made of forging steel and hardened to HRC 50.