Mini 33 in 1 disassemble screwdriver is set is a great tool for the telecommunication equipment which is made of steel material which makes it durable for years. It includes 20 screws, the slotted head type includes (1.5 mm, 2.0 mm, 2.5 mm, 3.0 mm, 3.5 mm); crosshead (1.5 mm, 2.0 mm, 2.5 mm, 3.0, 3.5 mm); torx head consists of (T3, T4, T5, T6, T7, T8, T8, T9, T10, T 15, T20, 0.8); Hex head (H1.3, H1.5, H2.0, H2.5, H3.0, H4.0); U2.6; Y2.0; Triangle 2.0. The packet consists of 30 screwdriver bit, 1 non-slip handle, 1 multi-functional bar, and 1 tweezer.