The blade is differentially hardened & tempered . Hardness on tip: 55 to 58 HRC. The blade tip is magnetized to lift small screw etc. from confined spaces or to hold the screw in position. The handle is made from high grade CA Plastic. The tip is precision ground to 100 angle, which ensures firm grip in the screw slot. Bright & smooth Nickel Chrome plating finish ,effectively protecting blade against corrosion. The handle is precisely designed to give comfortable grip even at higher torque.