The materials used to produce parts voltage test fire.The functions of the handle shaft is to receive torque is insulated and has the characteristic of clear. Material transparency which need light weight can get better in time using a torque screw should be must have a high melting point, because the material that should be used in the polymer backbone. By choosing materials is PVC.Stalk screwdriver (Metallic Rod) functions is to get the rotation torque of screw and conductivity, which requires a material with electrical conductivity Strong, with high melting point and the rust. The materials should be chosen among metals by using low carbon steel.Low carbon steels With the production of steel used most of C < 0.25% by weight, low price compared to other types of steel The steel has good electrical conductivitySpring of spring is Dan compact circuit inside. Take pressure and must be conductivity. Which needs a good flexibility, toughness and strong. The materials should be chosen among metals by the high carbon steel.The touch of button, at the top of the screwdriver, want of good electric by tapping a little electricity can flow to complete a cycle. The material that should be used in pig metal. The homogeneous, no rust is strong. The brass. The experiment on real parts is found to be the same parts and not painted.Clip bag. The use of the clip is clamped to the storage and improves the texture of electrical conductivity when using a finger to use. The material with electrical conductivity, strength to the bending strength of using clamp, storage, and should not rust. The materials should be chosen among metals by using stainless steel.
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