How many kinds of screwdrivers are there?
Screwdriver, screwdriver, a turn the screws to force the tools in place to twist, usually with a thin wedge head, the screw head can be inserted into the slot or recess - Tianjin dialect called "screwdriver", Shaanxi, Anhui, Henan and Hubei, known as the screwdriver. The main word (minus) and cross (plus two). There are also commonly used six corner screwdriver, including six corners and six corners outside two. So, what are some of the common screwdrivers?
1, ordinary screwdriver
It is a screwdriver made of the head handle. It is easy to prepare and can be used as long as it is taken out, but because there are many different lengths and coarseness of the screws, sometimes it is necessary to prepare many different screws.
2 、 electric screwdriver
Electric screwdriver, as the name suggests, is the installation and removal of screws by electric motors instead of hand, usually a combination screwdriver.
3 、 combination screwdriver
A screwdriver that separates the screwdriver head from the handle. To install different types of screws, only the screwdriver head can be replaced, without the need for a large batch of screws. The advantage is that it saves space, but it is easy to lose the screwdriver head.
4 clocks and watches screwdriver
A precision screwdriver, commonly used in the repair of hand type clock, so have this call.