The Yost K5040 is a mid-sized parallel clamp that offers an incredible 880 lbs. of clamping force, while being light enough to be used easily. The clamp can be converted very easily to a spreader by removing the end stop. Unlike other parallel clamps, Yost uses an ergonomic grip handle for extra power and comfort. The heavy duty aluminum design for the parallel jaws saves weight but does not sacrifice clamping force. The oversized jaw facings provide up to 30% more clamping area than other parallel clamps. Jaw facings measure 4" x 1.75"