Just spent the last couple of hours stripping it down and giving a damn good clean / refurb. Getting the straight shank out of it was a pain in the ass - I think it was put in by Thor. Or maybe the Hulk. It took heat, swearing, percussion & the hydraulic press -
at the same time - to get the damn thing to release. When it did it went with a bang. Pressing the sleeve of was much easier, revealing very dirty but good condition jaws and, bearings and nut.
everything was cleaned in meths, given a buff with on the wire wheel, and a tickle of scotchbrigh. The gripping surfaces of the jaws where lightly stoned, and everything was re-assembled with new lube.
again, I’m amazed at how well these clean up with very little effort.
This is a much better size. The 20 really was too big for my mill - I was kidding myself when I thought it wasn’t.
so I’m keeping the 18 and 14, as that cover me from 1 to 20mm now, which is plenty. I dunno if to keep the 16 now for possible use on the lathe, but I have another 14 on a a morse 2 shank which I use most of the time, and if I need bigger than it can do, I have some morse taper drills.