Strange Method Of Tramming A Mill Vise

[Vinny]

There was something in homemade tools this week where the guy made two blocks with 4 drill rod pins that fit snugly in the t-slots and were tethered to each other with a bar. He opens the vise, puts this fixture over the open jaws, closes the jaws with the mounting bolts loose, tightens the mounting bolts and he's done.

Found it! http://www.haythornthwaite.com/vice%20align.html