The double-jaw design of these clamps offers several advantages.
You can position the dual jaw on either side of a mitered corner to apply force evenly on the joint. In addition, distributing clamping force over the two jaw faces helps avoid damaging delicate work while also improving stability, so the clamp is less likely to twist out of position while being tightened.
Each has a non-slip spring-loaded tailpiece for quick positioning and adjustment, a wooden handle, non-marring jaw pads, a rigid steel rail, and powder-coated cast-iron jaws. The robust 3/8" threaded steel screw applies up to 400 lb of clamping force.
Throat depth is 3 1/2". Available with 12", 24" or 36" clamping capacity.