Each socket has a black phosphate protective coating to protect them against rust and corrosion.
Made from durable chrome-vanadium steel, these compact sockets average 1. With five sizes to choose from including 24mm, 27mm, 29mm, 32mm, and 36mm, this set has a socket to fit oil and some fuel filter canister caps used by the following vehicle manufacturers: Mercedes-Benz, Ford, Renault, Nissan, Dodge, Hyundai, Mini, Fiat, Kia, BMW, Audi, Saab, GM, Saturn, Pontiac, Chevrolet, and more.