The local woodcrafters has them at full retail of
$25/ea.

They are for a solo worker to hold pieces together
for edge fastening and glue-up.

The price seems out of line for one each.

Anybody know of a deep discount on these or who has actually
used them for speaker building?

See link below, bottom of page, last item.

• Jet jointer clamps

• http://www.amazon.com/exec/obidos/tg/detail/-/B000066B50/ref=pd_sim_hi_1/104-8608577-3683147?v=glance&s=hi