"Rex B" wrote in message
...
Tom Gardner wrote:
Lots of tricks for this. Do you have any press now? How many/time? A
small arbor press or even air press with the right die work. Your
punches can be ground different ways to minimize pressure. Think of a
"W" or "V" shape will spread out the pressure over the stroke. You must
configure the punch to keep the material from being squirted out the
side. Is there a common denominator so as to minimize the number of
punches and dies so you can do bigger holes with multiple hits? Keep
clearances tight, maybe 2% thickness per side. Put it on a shoe if at
all possible, used shoes are cheap.

Define "shoe" in this usage

Die set would be another term. See:
http://www.danly.com/idanly/QuotesDi...idanly&mrn=181