Irwin T512QCEL7 Quick-Grip Quick-Change Bar Clamp 300mm / 12\" The medium-duty Irwin T512QCEL7 Quick Change Bar Clamp features a quick change system which converts clamp to spreader in seconds. This now provides the consumer with a greater clamping hold load of 135kg. It also includes a new to the market lockable swivel feature which enables uneven surfaces to be clamped. Also equipped with removable and non-marking pads which provide protection to work surfaces. FEATURES Swivel jaw with lock for clamping uneven surfaces (patent pending) Square XP-style protective pads protect the work surface A durable, long lasting clamp Improved quick-change screw mechanism allows for easy conversion to a spreader Plastic grip handle Constructed from Steel Sustained clamping force does not easily ease off SPECIFICATION Length: 400 mm Clamping Capacity: 300 mm / 12\" Spreading Capacity: 515 mm / 20\" Weight: 918 g