Taparia 5 pcs Screw Driver Kit’s blades is made from high grade Alloy Steel to provide extra long life and high torque.It contains scientifically hardened blades to give maximum strength and long lasting trouble free usage.Its hardness level ranges between 52 55 HRC.Handle of screw drivers are made of high quality expensive plastic to enable high strength and durability.Soft material on the screw driver’s body enables better gripping and comfort in use.Black electro lacquering finish of the blades effectively protects blades from corrosion and rust.It is useful in loosening and tightening small screws in case of spectacles, cameras, Watches, Mobile phones, Computers and other electrical & electronics appliances.