When I opened my present shop in 1980, I bought a set of Adco arch
punches.  While not as massively made as the venerable Osborne punches,
I was able to afford these.  We bought a set of Osborne punches at San
Sylmar in 1979, and they all arrived dull!  They had to be taken to the
machine shop and sharpened to make them usable.

The Adco punches were much cheaper and sharp upon arrival, and although
one or two have broken and had to be replaced, due to dropping on the
cement floor over the past 17 years, I am still using them and they
work fine.

I can't find the Adco company in my database, but if someone is
interested and can't locate Adco, I'll be glad to dig out their file.

Larry Broadmoore