30 years ago I bought a 100mm Polish 4jaw self centring chuck for a woodworking lathe but it saw very little use (unguarded chuck + found my ability to bowl turn not really good enough to justify waste of wood!) now with a Warco WM180 with 100mm chucks found the bolt holes match but the register is 70mm rather than 72mm – what would be the best approach to machine a predrilled 72mm register backplate (as used on 3jaw etc) to take the 4jaw – make a mandrel and bolt to it ?

Edited By JasonB on 13/09/2015 10:07:50

Jason re title – yes please I’d been looking at faceplates as an option!

re suitability – It looks very similar in size + weight to the 4jaw indep chuck supplied with WM180 but for day to day ease in using sq bar in lathe I’d thought it would do, as so far little of my ‘swarfing’ on lathe is anything like high precision – however I have no other documentation I can find other than the remains of the original box as shown so if anyone recognises it (the trade mark on chuck appears to be a Bison)

Edited By Frances IoM on 13/09/2015 09:31:15