Originally Posted By Stanton
Quote:
DO NOT use the cheap 1/4"hole punches for sale everywhere. you can't get proper penetration all the way around the punch hole on the base metal.


Why is that ... because the holes are too small ??



yes. the hole is to small to get the wire in the hole all the way around the circumference of it before the weld puddle fills it up.
if you did destruction tests of your welds you will see improper penetration.

perception is 90% of reality