Fehrion_sit
10+ Year Contributor
- 274
- 0
- Oct 6, 2009
-
chalfont,
Pennsylvania
The two large holes were cut out by hand. The smaller holes I used the knock out punches. Generally the punch will "roll" the metal back, the are mostly used specifically for gauges. It rolls the metal so the gauge fits in the hole better. But I wanted to do something different. So instead of tightening the knock out punch all the way, I only tightened it to the point of shearing the metal.
I did however take it through an English wheel to insure flatness.
the knock out punch im assuming is 2 1/16 for gauges?