The lathe chuck for the Sherline uses small tommy bars to tighten the chuck. The tommy bars are used on the mill spindle also.
They like to bite me when snugging things up. So I added some surgical tubeing that I had from my model airplane days.
Needed to put some vaseline on them to get the rubber hose all the way on.
Works great...reduces the bite.
I found this tip on the Sherline web site where they sell these as a tool.
The Sherline site is a great reference for tool tips that apply to any lathe or mill but of course
most of them are shown as they apply to the Sherline product line.
No, I do not have stock in the company but I think it would be a good stock to have.
Cheers again, JR