1Made of high quality chrome vanadium alloy steel with electroplating treatment, high hardness and not easy to rust , long service life. 2The handle of the screwdriver is covered with PP and PTR material soft plastic, so it is very comfortable to hold it. It is not easy to fatigue the hand when working for a long time. 3The head of the screwdriver has strong magnetic force, and the screw can be sucked during use, which is more efficient to work. 4The handle of screwdriver is made of high quality insulating material, which has good insulation and is safer to use. 5The high bite ratio of the screwdriver bit and the screw can reduce the abrasion of the screwdriver bit and prolong the life of the bit.