"DoN. Nichols" wrote in message
...

[ ... ]

As for "lubricant" -- what are you using? You really don't want
to lubricate -- you want to cool (remove heat from the tool and the
workpiece), and to chemically aid the peeling of the metal away from the
workpiece. Things like Rigid high-sulfur pipe threading oil will work
sell for the purpose.

Rapid Tap

[ ... ]

Well ... Both V ways were probably cut on the same machine, so
the depth should be the same. A quick check is whether both the
horizontal workpiece and the vertical guide (which for test purposes can
simply be another cutoff of the same stock) are firmly gripped by the
vise at the same time. It probably does not hurt to add paper between the
moving jaw and the workpiece and guide to make up for the jaw
tilting slightly as it is tightened.

I shall look into that.


--
Michael Koblic
Campbell River, BC