This "circle cutter" appears to be the same design as one I've used
extensively with good results. Is the still it is machined from the
same?  Anyone's guess is as good as mine.

Here are a few other links I found.

http://www.ebay.com/itm/General-Adjustable-Circle-Cutter-1-2-inch-shank-/161080881051?pt=LH_DefaultDomain_0&hash=item25812b2f9b

http://www.ebay.com/itm/Empire-Circle-Cutter-7-8-to-6-holes-27992-/400499010196?pt=LH_DefaultDomain_0&hash=item5d3f99ea94

http://www.ebay.com/itm/Good-Used-No-4-General-Circle-Cutter-Pack-Hole-Saw-/130965405519?pt=LH_DefaultDomain_0&hash=item1e7e257f4f

http://www.ebay.com/itm/NEW-NIP-GENERAL-TOOLS-CIRCLE-HOLE-CUTTER-4-7-8-TO-4-/121146404890?pt=LH_DefaultDomain_0&hash=item1c34e3701a

RBerglund

The Rotary Engine News Letter. Powered by Linux.
ACRE NL web site. http://www.rotaryeng.net.
You Tube http://tinyurl.com/beqqxas.
Copyright 1998-2013 All world wide rights reserved.