Heat treated Chrome Molybdenum and Chrome Vanadium steel construction with a nickel-plated smooth satin finish. Aids forming, bending, crimping, and manipulating sheet metal. Spring loaded locking mechanism gives optimum locking force and safe easy release. Heavily knurled adjustment screw for extra grip. Features & Benefits:Heat treated Chrome Molybdenum and Chrome Vanadium steel construction with a nickel-plated smooth satin finish.Aids forming, bending, crimping and manipulating sheet metal.Spring loaded locking mechanism gives optimum locking force and safe easy release. Heavily knurled adjustment screw for extra grip.Capacity: 0-30mm.Lifetime guarantee*.Model No. AK6829 Specifications: Model No AK6829 Brand: Premier Jaw Capacity: 0-30mm Length: 200mm Nett Weight: 0.5kg