Features: Screwdriver handle can meet batch heads (a word cross T word plum blossom hex socket head universal extension rod can accommodate bending bar). High quality chrome vanadium steel 50 bv30 socket, 50% higher tightening torque than carbon steel, inferior smooth surface treatment, good corrosion prevention effect. rust. The batch head is made of stronger hardness materials, the toughness is higher. The push button quick release feature ensures that the socket is securely locked in use, but also allows easy removal or quick changing of the socket with a greasy or oily finger . For throttle opening, air conditioning, seat nut, fenders, car door locks, home (basic content) generally used in the combination of small screw nuts, the ideal of a tool set. Features: Set of 46 car repair ratchet wrenches. Materials: steel (chrome vanadium) + plastic Dimensions: 21 screwdriver bits: T10, T15, T20, T25, T30, T40, H3, H4, H5, H6, H7, H8, S4, S5.5, S7, PH1, PH2, PH3, PZ1, PZ2, PZ3. 13 DR