The double-jaw design of these clamps offers several advantages.
You can position the dual jaw to span a mitered corner, applying clamping force evenly on either side of the joint. In addition, distributing 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 powder-coated cast-iron body, non-marring jaw pads and a robust 1/2" threaded steel screw that applies up to 1200 lb of clamping force.
Throat depth is 2". Available with 4" or 6" clamping capacity.