Heat treated Chrome Molybdenum and Chrome Vanadium steel construction with a smooth satin finish. Deeply serrated and hardened teeth grip the workpiece from any angle. Unique non-slip jaw design offers up to three times more gripping power making it ideal for applications that require maximum torque. Features one-hand no-pinch quick release grip which provides comfort and control, reduces hand fatigue and are much easier to use than traditional style locking pliers. Heavily knurled adjustment screw for extra grip with greasy fingers.