I have a bunch of presses with 5/8-11 holes that are in poor shape. We pulled the first plate, 400 lbs - 2.5" thick and started drilling with a "D" handle 1/2" electric drill. What a bitch! I ground the bit into a spear point on a 21/64" bit with a slight negative rake and it's still tough. Two guys and it still is very grabby and ary twisty. Short of a mag drill or putting the plate on the BP (can't get it there except by mussle) There's got to be a better way?
18 years ago