The Adjustable Clamp 33424 Jorgensen 24-inch ISD Bar Clamp is the first bar clamp to expand by joining two clamps together with no tools or added accessories needed. The patented head design allows any two Jorgensen ISD-3 Bar Clamps to be joined together for greater clamping capacity. By quickly flipping the head you join two clamps together and also increase total clamping capacity by 6-Inch over the original two clamps. The Jorgensen ISD-3 Bar Clamp head can also be reversed for spreader function. Features: * When combined, you add an additional 6 inches of clamping length to the bar clamps * 76 percent more clamping force than competitors products * Quick release knob for fast, easy changeovers * Dual durometer handles for a comfortable grip What"s In The Box: * Adjustable Clamp 33424 24-inch Jorgensen ISD Bar Clamp