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What Are The Common Screwdrivers?

1, ordinary screwdriver

It is easy to prepare, as long as it can be used out, but because the screws have a lot of different lengths and thickness, and sometimes need to prepare a lot of different screwdriver.

2, electric screwdriver

Electric screwdriver, as the name suggests is to replace the motor with electric motor to install and remove the screw, usually a combination of screwdriver.

3, modular screwdriver

A screwdriver head and handle separate screwdriver, to install different types of screws, just replace the screw head can be, do not need to bring a lot of screwdriver. The advantage is to save space, but easy to lose screw head.

4, watch screwdriver

Belonging to the precision screwdriver, commonly used in the repair hand strap type watch, so there is this one said.

Screwdrivers are generally head type * working length.

4 * 100 refers to the screwdriver head width is 4 mm (rod diameter is 4 mm), the effective working length is 100 mm.

Cross head: PH1 * 200 means that the head of the screwdriver is PH1 (taper and size) The effective working rod length is 200 mm.

Common specifications of the cross: PH000 PH00 PH0 PH1 PH2 PH3 where PH000 taper minimum PH3 taper maximum.

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