JORGENSEN 4-pack Steel Bar Clamps Set, 6 inch & 12 inch Medium Duty F-Clamp - 600 Lbs Load Limit for Woodworking

The throat depth is 2-1/2 inch, the maximum opening capacity is 6-inch and 12-inch and the Normal load limit is 600 lbs | Sliding head design makes this style fast acting: the sliding head is threaded to accommodate the screw with large easy grip handle and swivel pad | Multiple-Disc-Clutch design consist hardened plated steel clutch disc and one spring which allows the sliding head to hold securely at any point along the bar | With soft and durable plastic pads, steel bar is plated to be rust resistant and the iron castings have an orange baked enamel finish | Designed for all types of medium-duty clamping, and Ideal for hobbyist, carpenters, woodworkers, metalworkers and professional trades people of all types