Stanley ControlGrip™ Combination Pliers are manufactured from drop-forged steel with an induction hardened blade and tempered jaws. The black oxide finish resists corrosion and extendeds product life. Precision milled cutting edges and pivot provide smooth opening and closing of the jaws. The handles have been ergonomically designed with three-zone, bi-material grips for optimum comfort and minimum risk of fatigue. Ref: UTTK4788