HIGH-QUALITY MATERIAL: Ginour 1/2'' impact socket set adopts CR-V steel Material, forged from heat-treated chrome vanadium steel, the surface is electrophoretic black treatment, corrosion-resistant, wear-resistant and rust-proof, not easy to be scratched. COMPLETE SPECIFICATION KIT: This comprehensive impact socket set includes 17 metric sockets: 8, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, and 24 mm—covering a wide range of fastening needs. It also comes with 3 extension bars (3", 5", and 10") to help you reach deep or hard-to-access areas with ease. A 3/8" to 1/2" socket adapter (1.5" length) is included, compatible with electric drills and impact tools, making this set versatile enough for most repair and maintenance jobs. 6-POINT DESIGN: This 6-point impact socket set offers a larger contact area with fasteners, reducing wear on bolt surfaces and minimizing the risk of rounding or damage. The strong locking grip ensures better torque transfer, while the pin-hole design adds extra stability and prevents slipping during high-torque applications. EASY TO IDENTIFY & PROFESSIONALLY ORGANIZED: Each socket features high-visibility, permanent laser-etched size markings, making it quick and easy to identify the right size—even in low light conditions. The included professional storage case keeps every socket securely in place with custom-molded slots, preventing movement during transport. Clearly labeled slots and durable construction ensure fast access and long-term organization. WHAT YOU GET: 16 x Ginour 1/2 inch impact socket set; 3 x extension bar; 1 x 3/8'' to 1/2'' socket adapter, 1 x case; 24 months warranty and friendly customer service.