Align the specially shaped end of the screwdriver with the top pit of the screw, secure it, and start rotating the handle.

According to the specification standard, the clockwise rotation is inlayed; Rotate counterclockwise to be released. (Rarely the opposite)

A flat screwdriver can be applied to Phillips screws. However, Phillips screws have strong resistance to deformation.

Maintenance measures:

(1) The blade of the screwdriver must be sharpened correctly, and the two sides of the blade should be as parallel as possible. If the blade is tapered, when turning the screwdriver, the blade can easily slip out of the screw notch.

(2) The head of the screwdriver should not be sharpened too thin, or ground into a shape other than Fang Tong.

(3) Be especially careful when grinding the screwdriver on the grinding wheel, it will make the edge of the screwdriver soft due to overheating. When grinding, wear goggles.