10 PCS metric size sockets: 10 mm, 11 mm, 13 mm, 14 mm, 17 mm, 19 mm, 21 mm, 22 mm, 23 mm, 24 mm. One impact extension bar and one impact swivel adapter are also packed in a strong case

Constructed of heat treated chrome vanadium steel with a professional-grade, black phosphate finish for anti-oil, anti-rust, which is a type of alloyed tool steel with great strength and durability for high-intensity long-term work

It is made of premium chrome vanadium steel. Length: 6 inch (152mm) which is a type of alloyed tool steel with great strength and durability for high-intensity long-term work

The 6-Point hex socket design avoids round-off deterioration caused by impact and electric wrench under high torque and hammer pressure. High-contrast and visible laser-etched markings on corrosion-resistant black phosphate finish makes it easy to identify drive socket sizes, specs, and measurements even in dim light

The sockets set are stored in a sturdy and strong blow molded case. Each socket or extension bar has its own place inside the case, which makes it very easy to find and organize. includes a full range of metric and SAE sockets, wrenches, etc. and all the tools are carved with metric/inch sizes. Whether you’re working with standard or metric measurements, these pieces will meet your needs and they are easy identified, ensuring you find the exact tool you need