Draper expert 38 square drive hi torq bi hexagon sockets in display packs draper expert 53320 expert quality 12 point sockets manufactured from chrome vanadium steel hardened tempered chrome plated and polished for corrosion protection chamfered ends allow positive nut location display packedmanufactured and tested generally in accordance with din3122 and iso3315 specificationsdraper expert hi torq174 is a registered trademark of draper tools ltd draper expert 53320 17mm 38 squar