On Feb 9, 2:18 pm, Jeff Wisnia wrote:

Why the Hell the instructor let us wear those shop coats with long
sleeves I'll never understand.

I prefer a tight-fitting long apron, tied in the back, with short
sleeves underneath. I also try to avoid working on the lathe with the
chuck jaws extending out past the body of the chuck. With a smooth
chuck body, if you should accidentally touch your hand or arm to it
while spinning, it will just pass over. Extending chuck jaws, on the
other hand, would not be a good idea!