We have 1250mm 4-jaw heavy duty lathe chuck in stock. It has four pcs of bolt-on box jaws. This heavy-duty chuck has A2-15 short-taper direction mount to spindle nose. On request, A2-11, A2-20, D11, D15, D20 etc. mounts can be custom made. Our heavy duty chucks diameters range from 1000mm to 2500mm. They can also be made into large-bore type like below: