Features: Screwdriver handle can meet batch heads (a word cross T word plum blossom hex head universal extension rod can accommodate bending bar). High quality 50 bv30 chrome vanadium steel socket formed by cold pressing, 50% higher torque than carbon steel, inferior smooth surface treatment, good prevention effect rust. The batch head adopts materials, stronger hardness, toughness is higher. The push button quick release ensures the socket is locked securely when in use, but also allows for easy removal or quick changing of the socket with a greasy or oily finger. For throttle opening, air conditioning, seat nuts, tire fenders, car door locks, home (basic contents) usually used in small screw nuts, the ideal tool kit. Features: Set of 46 car repair ratchet wrenches. Material: 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 1/4" sockets: 4, 4.5, 5, 5.5, 6, 7, 8,