Denford Software & Machines

Has anyone successfully fitted a 5C collet chuck to their MIRAC?

Does anyone have the part number or specs of the optional factory pneumatic chuck?

As no one else has replied I'll suggest you might look at a Kalamazoo 5C chuck as it might do what you require https://kalamazooind.com/product/1cc-5c-collet-fixture/ , it can be held in a 3 jaw chuck if required. It doesn't need a drawbar as the threaded rear of the collet is screwed into position and locked with a screw and the sleeve around the front of the collet moves to close it so you get repeatability, drawbar use can lead to variations in length if the stock size changes. I use one on my Harrison M300 which is a D1-4 chuck mount so a similar short taper mount but I don't know how big the chuck mount is on a Mirac. I made an adaptor that it fits into which has a D1-4 mount.