Milwaukee® +STOP LOCK™ Hand Clamps wont back off material once the clamp force is applied. The non-ratcheting HEX release mechanism offers easy one-handed release and maximum staying power. Built with engineered polymer pads Milwaukee Hand Clamps provide a secure hold on a variety of jobsite surfaces. The ergonomic anti-pinch handles provide a non slip grip surface for maximum comfort and superior performance. Milwaukee stands behind their product and offers a Limited Lifetime Warranty with all hand clamps.