Elora 38 square drive hexagon sockets elora 15233 professional quality sockets manufactured from chrome vanadium steel hardened tempered and chrome plated for corrosion protection chamfered end allows positive nut location and entry hole for driving accessory spring loaded ball bearing sold loosemanufactured to din 3124iso 2725 and din 3120iso 1174 specifications elora 15233 16mm 38 square drive hexagon socket