Just exploring options at the moment. I may need reduce the register of a collet chuck from 43mm x 7mm to 22mm x 7mm. So a ring 43mm x 7mm and a bore of 22mm is needed. Any suggestions on how to achieve this? Would the best way be to get a piece of hollow bar and machine the face, OD and bore the centre without disturbing setup and then part off to length. Should be pretty accurate I am guessing. It's so I can adapt this collet chuck to a Toyo ML-1.

Part number 050-110-25600 at this link -

050-110-25600

Mount holes will need to be redone to a 35mm PCD to suit the spindle, as the spindle is 40mm diameter, but that's fairly easy if there's enough clearance when collet nut is removed.


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