It's meant to be attached to another clamp, so as to provide clamping
pressure at a right angle to the bar of the clamp. They are
particularly useful for applying pressure in the center of a wide glue
up but can also be used for edge banding.
I have a number of them that were made fairly recently by Bessey which
have the model number of 5-1 on them.
Thomas J.Watson - Cabinetmaker (ret.)
tjwatson1ATcomcastDOTnet (real email)
Many news servers (mine included) strip attachements from non-binary
groups (which rec.woodworking is).
Could you repost your pic to alt.binaries.pictures.woodworking? More
people will be able to see it.
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