One 4 in. opening bar clamp does the work of 1 in., 2 in., 3 in. and 4 in. C-clamps
Time saving sliding arm design is 9-times faster than using C-clamps
Zinc die-cast jaws are light weight
Serrated rail enhances the positive grip of the cast arm to the rail during clamping activity
Acme threaded spindle for quick, smooth clamping operations
Non-marring plastic cap on the pressure pad for delicate surfaces
Up to 330 lbs. of clamping force
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