The original BESSEY malleable cast iron bar clamp was the world's first bar clamp. It is an industry standard because of its durability and build
TG+2K Series Bar Clamp, 24 Inch Capacity 5-1/2 Inch Throat Depth
Bessey 40 Inch Capacity 4-1/2 Inch Throat Depth
Bessey 2 1/2 Jaw Light-Duty Fast-Acting Clamps - Lee Valley Tools
Corbin Clamp
BESSEY Clutch Style 34 in. Capacity Bar Clamp with Wood Handle and 2-1/2 in. Throat Depth GSCC2.536 - The Home Depot
BESSEY TG5.512+2K Clamp, woodworking, F-style, 2K handle, replaceable pads, 5.5 In. x 12 In., 1320 lb
Bessey Clamps in Hand Tools
TG Series 40 In. Bar Clamp with Wood Handle and 4-1/2 In. Throat Depth
BESSEY Clutch Clamp 12 in. x 2-1/2 in. Wood Handle TGC2.512 - The Home Depot
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TG+2K Series Bar Clamp, 40 Inch Capacity 4-1/2 Inch Throat Depth
Bessey Double-Jaw C-Clamps - Lee Valley Tools