Details of The Screwdriver

Screwdriver is used to tighten or loosen the screw. Electricians can not use the metal rod connecting the top of the screwdriver handle, so as to avoid electric shock;
According to the screwdriver function can be divided into five.
1.The ordinary screwdriver is the easiest kind of hand tools, but because there are many different screw length and thickness, and sometimes need to prepare a lot of different screwdriver support.
2.Combination type screwdriver, Screw head and handle is separated, install different types of screws, just replace the screwdriver head, do not need to bring a lot of screwdriver. Can save space, but easy to lose screw head.
3.Electric screw driver, is an electric motor instead of manual installation and removal of screws, usually it is combination screwdriver.
4.clock screwdriver, belongs to precision screwdriver, commonly used in the repair hand-banded watches.
5.small diamond screwdriver, head handle and body length is smaller than commonly used screwdriver.