Self-energized lower jaws help deliver 3X Gripping Power compared to Irwin® Vise-Grip® Fast Release™ WR locking pliers, with no slipping or stripping Redesigned tactile grip zone helps improve user control and is suited for high-temperature applications Hex key adjusting screw tightens to adjust pressure and draws materials together, providing a more controlled release Made with a one-handed, triggerless release that is 2X easier to open compared to traditional locking pliers Curved jaws allow for equal four-points of pressure, making it ideal for heavy torque on any style on nut or bolt head Built with heat treated alloyed steel for maximum durability Jaw Capacity 1-1/8" (29 mm) Manufacturer's Warranty Lifetime Guarantee Overall Length 5" Style Curved Jaw