Features: With this Multifunction Socket Wrench you?ll always have the right tool for the job The 12pcs Multifunction Wrench !!! Works with Virtually ANY Size & Shape Nuts & Bolts. (1) High-Quality Mirror Chrome Vanadium Steel. (2) 72 teeth heavy duty reversible quick release ratchet handle - Soft grip handle for the comfort of work - Essential sockets in every garage, workshop or household. ---12 pieces (1/2th Inch) 12.5 mm Sockets Set Includes - (1) 1 Pc (1/2th Inch) 12.5 mm Series Quick Release Ratchet Wrench. (2) 1 Pc (1/2th Inch) 12.5 mm Series Standard Extension Bar: 5" (Inch). (3) 10 Pcs (1/2th Inch) 12.5 mm Series Hexagon Sockets Sets:10,11,12,13,14,15,17,19,21 and 22. ---ADDITIONAL FEATURES & WORKING: (1) Built-in precision 72 gears:: Features: With this Multifunction Socket Wrench you?ll always have the right tool for the job The 12pcs Multifunction Wrench !!! Works with Virtually ANY Size & Shape Nuts & Bolts. (1) Forged Fine CRV, High-Quality Steel fine chrome plating quenching, precision72 tooth oil furnace quenching and anti-rust lubrication ability, turn only once 5 degrees. (2) Chrome vanadium steel quenching and forging:: A variety of specifications to meet the needs of the work, sockets and wrenches are used high-quality chrome vanadium steel forging the overall heat treatment high hardness, torque, good toughness, long service life. (3) Chrome steel mirror polished:: High quality chrome vanadium steel forging, the overall smooth formation, the whole body thick high hardness, the use of mirror polishing is not easy to scratch wear long life. (4) Ergonomic handle:: Wrench the entire chrome vanadium steel forging mirror polished. Thermoplastic rubber handle, ergonomic design, handle non-slip. (5) Self-locking drive head:: Self-locking drive head to prevent the sleeve accidentally fall off and can be unlocked button to achieve fast switching sleeve function, the use of more relaxed, more efficient and more secure.