if you already have a standard shrinker/stretcher, you can make a deep throated version from steel plate, and use the same jaws for the standard version
deep shrinker/stretcher
a couple of years ago I got a cheap Metz shrinker / stretcher off ebay http://www.ebay.co.uk/itm/261620178141 and then saw some lazze videos about using a deep shrinker / stretcher to create compound curves like this one so rather than buying one, I thought I'd make a new body for one, as...
www.mig-welding.co.uk