Self-energizing lower jaw provides 3X more gripping power with no-slipping or stripping. Provides maximum torque without requiring heavy input pressure. One-handed, triggerless release is 2X easier to open. Anti-pinch, non-slip "ProTouchGrips" provide comfort, control and less hand fatigue. Constructed of high-grade, heat-treated alloy steel for maximum toughness and durability. Hardened teeth are designed to grip from any angle. Hex key adjusting screw tightens to adjust pressure and draw materials together and provides a controlled release.