- One of a comprehensive range of Premier Hand Tools, suitable for daily professional use. - Manufactured from hardened and tempered drop-forged Chrome Vanadium steel. - Finely ground polished heads. - Unique teeth and jaw design increases torque and grips round, flat, square and hex profiles. Induction-hardened 55-65 HRC. - Dual material comfort grip handles and black oxide finish for corrosion resistance. - Sizes: 200, 250, 300mm. - Lifetime guarantee*.