The Draper 2351 Expert 47 Piece Socket Set offers expert quality chrome vanadium steel hardened, tempered & satin chrome plated for corrosion protection, along with the low profile 60 tooth reversible ratchet. The sockets are Draper Expert Multi-Drive which allows them to be used with hexagon, bi-hexagon (metric & AF) & Draper TX-STAR fixings. This Draper Socket Set has been manufactured & tested generally in accordance with DIN3122 & ISO3315 Specifications.