Fast Release is 2x easier to open, has a no-pinch release, and offers more finger roomCurved jaw puts tremendous pressure on four points of any style nut or bolt head. The no-slip ProTouch grip provide comfort and leverage while reducing vibrations and hand fatigueIdeal for tightening, clamping, twisting and turningTurn screw to adjust pressure and fit work - stays adjusted for repetitive useConstructed of high-grade heat-treated alloy steel for maximum toughness and durabilityHardened teeth are designed to grip from any angle