I have a Clarkson autolock collet chuck with my mill, and it has a set of imperial collets with it. However, I need to use a cutter with a metric (16mm) shank - and the 5/8 collet is _just_ too small!
Anyway, my problem is that I cannot seem to find clarkson collets like mine. They are very similar to this one on eBlag
Do I need to look for a different sort of collet? If so, do they have a name? Or are mine some kind of home hybrid bodged version?