Feature: 1. The end of the drill bit with precise chamfer can be inserted smoothly, and the size is printed on the socket for easy access. 2. The hardened chrome vanadium steel socket can improve rotation efficiency and reduce wear. 3. Using high‑quality steel, high temperature quenching, strong and durable, strong torgue. 4. It has complete anti-rust and corrosion resistance and can be used for a long time. 5. A whole set of tools, wide range of applications, which can be used at home, car, etc. Specification: Item Type: Square Socket Bit Set Material: Chrome-Vanadium Steel Toolbox Color: Blue Square Wrench Connector Size: Approx. 1/2in (12.5mm) Bit Specifications: M5, M6, M8, M9, M10, M12, M14, M16 (Length: Approx. 55mm/2.2in) M5, M6, M8, M9, M10, M12, M14 (Length: Approx. 100mm/3.9in) M5, M6, M8, M9, M10, M12, M14 (Length: Approx. 140mm/5.5in) M8, M10, M12, M14 (Length: Approx. 200mm/7.9in) (Manual measurement may have a deviation of 1-2 mm) Fitment: 1/2 inch square wrench interface/air wrench/power rod, etc. Application: Household, automobile, etc.. Package List: 26 x Square Socket Bit 1 x Tool Box Note: Please allow 1‑2mm difference due to manual measurement.