Expert Quality, for the installation and removal of locking wheel nuts on most vehicles (except those fitted with rotating protector shrouds). Manufactured from molybdenum steel, hardened, tempered and chemically blackened for corrosion protection. Reduce tapered internal left hand coarse thread. For use with air and electric tools. Supplied with metal case. Features and BenefitsExpert QualityFor the removal of locking wheel nuts on most vehicles (except those fitted with rotating protector shrouds)Molybdenum steel, hardened, tempered and chemically blackened for corrosion protectionReduce tapered internal left hand coarse threadSupplied with metal case Contents 4 x socket: 38mm long x 17.0, 18.5, 21.5, 26.0mm