Manufactured from hardened and tempered drop-forged Chrome Vanadium steel. Finely ground polished head. Unique teeth design and diamond shape jaws increase torque and grip on round, flat, square and hex shapes. Induction-hardened to 55-65 HRC. Dual material comfort grip handles and black oxide finish for corrosion resistance. Features & Benefits:Manufactured from hardened and tempered drop-forged Chrome Vanadium steel. Finely ground polished head.Unique teeth design and diamond shape jaws increase torque and grip on round, flat, square and hex shapes. Induction-hardened to 55-65 HRC.Dual material comfort grip handles and black oxide finish for corrosion resistance.Lifetime guarantee*.Model No. AK83793 Specifications: Model No AK83793 Brand: Premier Length: 300mm