- One of a comprehensive range of Premier Hand Tools, suitable for daily professional use. - Heat treated Chrome Molybdenum and Chrome Vanadium steel construction with a nickel-plated smooth satin finish. - Deeply serrated and hardened teeth grip the workpiece from any angle. - Riveted handle construction provides extra rigidity and reduces deformation when grip is under load. - Spring loaded locking mechanism prevents nipping fingertips when releasing. - Heavily knurled adjustment screw for extra grip with greasy fingers. - Lifetime guarantee*.