Durable and precise performance Material and construction: Made from a quality chromium vanadium steel alloy, the set undergoes multiple quenching and hardening treatments to deliver strong torque and resistance to breakage. The mirror chrome finish provides strength, wear resistance, and rust protection for a longer service life. Socket design: The torque 6point sockets grip the flat sides of fasteners rather than the corners, helping prevent rounding and providing reliable grip under load. Contents and specifications Drive and extensions: 1/4 universal connector: 1 piece 1/4 x 2 extension rod: 1 piece 1/4 x 4 extension rod: 1 piece Sockets (drive size 1/4 inch): Sleeves: 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 11, 12, 13, 14 mm Drill bit sleeves (21 pieces): PH1, PH2, PH3 PZ1, PZ2, PZ3 FD4, FD5.5, FD7 HW3, HW4, HW5, HW6, HW7, HW8 T10, T15, T20, T25, T30, T40 Hex keys: 1.5 mm, 2 mm, 2.5 mm (Lshaped) Case: Sturdy blowmolded tool box for easy storage and portability Ease of use and storage Quick release and reverse mechanism: The ratchet handle features a quick release and a reversible mechanism for efficient operation. Ergonomic design: The ratchet and handle are designed for comfortable, longlasting use. Comprehensive and portable: The set offers a broad range of tool specifications in one kit, and the blowmolded case keeps everything organized and easy to carry. Typical applications Home and DIY projects: Furniture assembly, appliance servicing, and general repairs around the house. Automotive maintenance: Small to midsized fasteners found on engines, panels, and related components. Bicycle and lightduty repairs: Components and adjustments that use 1/4 inch drive sockets and the included hex keys and drillbit sleeves.