XP™ One-Handed Bar Clamp & Spreader, 50" (1270 mm)I beam bar resists twisting and bowing Power Locks hold better, allowing for up to 900 lbs. of force Quick Change jaw, converts clamp to spreader quickly Non marring pads grip securely Quick Release trigger Clamping Capacity: 50" (1270 mm) Throat Depth: 3 1 4" (82. 55 mm) Clamping Force: 600 lbs. Manufacturer Part Number: 1964716 Spreading Capacity: 7 1 2" 58 5 8" (190 mm 1489 mm)