Draper expert 38 square drive hi torq bi hexagon deep sockets draper expert 27110 expert quality 12 point deep sockets manufactured from chrome vanadium steel hardened tempered chrome plated and polished for corrosion protection chamfered ends allow positive nut location overall length 65mm sold loosemanufactured and tested generally in accordance with din3122 and iso3315 specificationsdraper expert hi torq174 is a registered trademark of draper tools ltd draper expert 27110 17mm