The screwdriver is a kind of device which is designed to screw tightly or loosen screws, screwdriver across to contain...Metal rods. The end of the holder with the screw. Which have different shapes to make available to the various types of screws and rods for holding similar cylinder on the other side to solve by hand. Or some kind of screwdriver may be rotated by motor.(torque) from rotation to the end. The screw rotate according to spiral into or out of another material
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Screwdriver (Screw Driver) as a tool for tightening and loosening screw type head cut. The size and shape of the screwdriver is designed according to the characteristics of work, such as a screwdriver used for King's GEM (Jeweler 's Screw Driver).Screwdriver, used in the hard work of mechanic design petiole is the square to make use of a wrench or vise Khan to increase tension in twisting. Screwdriver screwdriver to greater consists of main components 3 parts
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1. Screwdriver handle (Handle)
2. Stem screwdriver (Blade or Ferule)
3 mouth screwdriver (Tip).
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