This 3/8" square drive drain plug key with 3/8" square profile is specifically designed for use with Honda gearbox and sumps, Mazda back axle and gearbox, Renault gearbox and sump, Saab gearbox, and Volvo back axle and sump applications. The 3/8" square configuration provides a larger engagement area compared to hexagon designs, making it particularly suitable for these vehicle-specific drain plugs. Manufactured from chrome vanadium steel that has been hardened and tempered, this professional drain plug key offers exceptional durability and resistance to wear. The square profile ensures positive engagement and torque transfer, whilst the 3/8" square drive allows seamless integration with your existing socket tool collection. Features and Benefits:3/8" square profile for vehicle-specific drain plug applicationsCompatible with Honda, Mazda, Renault, Saab, and Volvo vehiclesChrome vanadium steel for superior strength and longevity3/8" square drive for use with standard ratchet