A screwdriver is a tool used to turn a screw to force it into place. It usually has a thin wedge head that can be inserted into the slot or notch of a screw head - also known as a "taper." There are two main types (negative sign) and cross (positive sign). There are also common hex screwdrivers, including two kinds of hexagonal and hexagonal.
Types of screwdrivers 1. An ordinary screwdriver is a screwdriver made with a head shank. It is easy to prepare and can be used as long as it is used. However, since the screws have many different lengths and thicknesses, it is sometimes necessary to prepare many different screwdrivers.
2. Combination Screwdriver A screwdriver that separates the screwdriver head from the handle. To install different types of screws, simply replace the screwdriver with a screwdriver. The advantage is that space can be saved but it is easy to lose the screwdriver head.
3, electric screwdriver Electric screwdriver, as the name suggests is to replace the manual motor with an electric motor to install and remove screws, usually a combination screwdriver.
4, watch screwdriver is a precision screwdriver, commonly used in the repair of hand strap watch, so this is called.
5. The size of the head and length of the diamond screwdriver is smaller than that of a commonly used screwdriver, not a clock screwdriver.
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