The draper 2351 expert 47 piece socket set offers expert quality chrome vanadium steel hardened tempered and satin chrome plated for corrosion protection along with the low profile 60 tooth reversible ratchet the sockets are draper expert multi drivereg which allows them to be used with hexagon bi hexagon metric and af and draper tx star fixings this draper socket set has been manufactured and tested generally in accordance with din3122 and iso3315 specifications