About This EFFICIENT 90-TOOTH RATCHET DESIGN:This metric and SAE ratchet wrench set features a 90-tooth ratchet mechanism, requiring only a 4-degree swing for operation, making it perfect for precise repairs in tight spaces. The 12-point box end provides more contact points for better torque and stability, increasing work efficiency. PREMIUM BLACK NICKEL PLATING FOR CORROSION RESISTANCE:The wrenches are coated with black nickel plating, enhancing corrosion resistance by 30% compared to standard finishes. The double-layer electroplating not only adds a sleek appearance but also ensures better rust resistance and anti-slip properties, making these tools durable even in harsh conditions. 22-PIECE DUAL STANDARD METRIC & SAE SET:This set includes 22 pieces of both metric and SAE wrenches, ranging from 6mm to 18mm and 1/4" to 3/4", covering a wide range of sizes for various repair tasks. Whether for automotive, machinery, or home use, this wrench set meets diverse needs efficiently. DUAL-ENDED DESIGN FOR FLEXIBILITY AND EFFICIENCY:Each wrench features an open end for quick adjustments and a ratcheting box end for fast removal of screws without the need for frequent repositioning. This dual design enhances operational efficiency, allowing for smoother and faster work processes. PORTABLE STORAGE POUCH FOR CONVENIENCE:The set comes with a durable storage pouch for easy organization and portability. This tool roll ensures that your wrenches stay organized and secure, preventing loss or disorder. Whether you're on a job site, in the workshop, or working outdoors, carrying and storing your tools is hassle-free. Overview Color : Black Nickel Brand : DISEN Material : Chrome Vanadium Steel Item Weight : 2.6 Kilograms Item Package Quantity : 1