These pliers are drop forged from chrome vanadium steelcorrectly hardened & tempered with in addition induction hardened cutting edges. Each pair of pliershas been individually tested to 10, 000V for safe 1000V AC or 1500V DClive line working. Lacquered finish for corrosion protection with heavy duty, fully insulated, soft grip handles with slip guards. Set of three This high quality set of three pliers consists of: 200mm combination pliers; 200mm long nose pliers; 160mm Diagonal side cutters.