Features: * Patented locking swivel jaw * Removable pads * Quick change screw * I-beam bar * Delivers 300 lbs. of sustained clamping force * 3-1/4-inch throat depth * 7-1/2-inch to 25-1/4-inch spreading capacity * 18-inch clamping capacity What"s In The Box: * Irwin 518QCN 18-inch One Handed Bar Clamp/Spreader