The new ISD 3 bar clamps offer increased clamping pressure over our already superior ISD bar clamp. The new Expandable feature allows for 2 clamps to be combined into one single clamp. The feature allows the user to add an additional 6" of clamping length to their bar clamps when combined. These bar clamps also feature a quick release mechanism for easy changes to the expandable or reversible position. The ISD bar clamps still feature "dual durometer" handles and are a truly "woodworking capable" clamp. Features: * Expandable feature allows for 2 clamps to be combined into one single clamp * Quick release mechanism for easy changes to the expandable or reversible position * Feature "dual durometer" handles * 18 inch maximum opening What"s In The Box: * 33418 ISD Bar Clamp