My T&C grinder has a very odd wheel arbour (20mm male spigot with
16mmx1.5 thread) and even the UK distributor doesn't have any arbours so I'll have to make some. Clearly concentricity is a key attribute and I can handle that. What I'm curious about is the best wheel holding design. The one that I have has a very odd disc with a slit that I've never seen before. Has anyone else made wheel arbours - what did you do? What's the standard form?And if anyone has a single loose Coventry die with a 1.5mm pitch I need one to make an external threading tool and would be happy to part with a small amount of cash!
Thanks
Charles