"Robbo" wrote in message
...
I've seen a few requests for information on forming & cutting tonnages etc
lately. I don't know Jack Schidt about the subject but stumbled across the
page below with a variety of downloadable excel spread sheets.

They may be useful to other amateurs / learners like myself.

http://www.sheetmetaldesign.com/Tech...-TechTools.htm


"Helps calculate forming & cutting tonnage, spring pressure, die
clearance, die cost, thread size, perforating pressure, etc."
"Standard Sheet Metal Gage Table"
"Thread size tables..."


Great site, Thanks