Constructed of high-grade heat-treated alloy steel for maximum toughness and durability with hardened teeth are made togrip from any angle. Curved jaw puts tremendous pressure on four points for any application that requires maximum torque. Classic trigger release provides maximum locking force; built-in wire cutter great for a variety of applications and material shapes. Hex key adjusting screw tightens to adjust pressure and draw materials together and provides a controlled release.