Durable - 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.

Professional Details - The 6-Point hex socket design avoids round-off deterioration caused by impact and electric wrench under high torque and hammer pressure.

Sturdy Case - The sockets set are stored in a sturdy, 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.

Laser Etched Size - High-contrast and visible laser-etched markings on corrosion-resistant black phosphate finish make it easy to identify socket sizes, specs, and measurements even in dim light.

What You Get - 13 PCS metric size sockets: 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1", 1-1/16", 1-1/8", 1-1/4. All these items are packed in a robust case.