A screwdriver generally consists of a handle and a screwdriver rod. The material of screwdriver handle is generally: wooden handle, plastic handle, iron handle, etc. At present, the handle is mainly plastic. The plastic handle has monochrome, bicolor or tricolor plastic, usually made of PP or PP+TRR.

The materials of screwdriver handle are generally: Cr-Mo steel (S2), CR-v steel, carbon steel, copper materials used in special occasions, etc. According to the function and use occasion, screwdrivers generally include: conventional screwdriver, insulated screwdriver, puncture (tapping) screwdriver and explosion-proof screwdriver.

Commonly used screwdriver models and specifications are as follows:

Star hexagon: T3, T4, T5, T6, T7, T8, T9, T 10 (almost all mobile phones with hexagonal screws).

M-shaped (U-shaped, fork-shaped): M2.6 (the most common U-shaped screwdriver specification).

Y-shape (triangle): Y2.0, Y3.0(Y screw mobile phone, PHS, seat charger, etc. , all in one).

▲ Type: 2.0, 2.3 (it is rarely used to remove some triangular screws, but it is necessary to spare them).

★ Type: 1, 2 (special pentagonal screw mobile phone is also removed).

Cross: 1.0, 1.5, 2.0, 3.0(PSP, MP4, MP3, digital, etc. ).

One word: 1.0, 1.5, 2.0, 3.0 (watch series).

Hexagon sleeves: H 1.5, H2.0, H2.5, H3.0, H4, etc.