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In article , Don Foreman wrote:
I need a way to cleanly shear 18-gage (.047") stainless sheet at a job
site. The width of the material will be about 4". Cuts will be
straight (not curved) but must be clean, square, straight edges.
Cosmetics is important so heat is out -- plasma, abrasive, etc. It
needs to be on-site for cut & fit so laser and waterjet are out. The
cut drop can be distorted, but the workpiece must remain flat and
undistorted.

I'm wondering if a Jet slitting shear would do this job well. Anybody
have any experience with these?
http://industrial.jettools.com/Produ...Cat&cat=333032

I have a Beverly B2. It shears the material easily but getting
dead-straight edges is a bit of a trick on a B2.

Other suggestions?

If you can find a Di-Acro 12" shear, I think you'd be all set. They will
handle 16 gauge steel, so I think 18 gauge stainless would be OK. 4"
might even work with one of the large corner notching shears.

One possible issue with the Jet shears is that the metal may tend to
squirm a bit, giving you a curved cut. You can fix this by rigging up
some sort of clamping system. You'd probably want to rig up a good right
angle fence anyway, and you could add a clamping set up to that.

Doug White