I use the Fine Down Feed on my Rockwell vert. mill and always
set the depth stop so even if it does grab a bit it doesn't go past
the depth I need. The fine feed is a worm and wheel arrangement
so it doesn't jerk down.
Larry S
Ft. Wayne, IN
A Dial Caliper (inside measure) is not a good way to get an accurate
measurement of the diameter of a hole. How accurate does the hole
need to be ? I wouldn't bet that you could get an ID dimension of
the hole to less than 2 thou either way. Also since the jaws of the caliper are not...