Making quick change tool post holders (picture heavy)

[Dave J]

Thanks guys it was a lot of work, a few hours a day over a few weeks.

Piman
They are just mild steel blackened, comes up great if you can heat the part and are not worried about distortion.

My mill is a HM52 (Grizzly 2617 in the US now discontinued)
It's 240 volt single phase with no quill feed,






I would need a clutch tapping head which are about $500 over here, to much for a home shop and I don't do this many holes every day.
It only took around an hour to tap them with a sharp tap with the coolant washing away the chips, surprised me.

Also the adjusters had to be done in the bench vice as the slipped in the smooth vice jaws of the machine vice, so had to be done by hand (60 odd)
I made the adjusters a tight thread so they would be more accurate, it took some pulling on a large tap handle to tap them and cleaning the tap magic off each time, they took a longer.

Dave