Draper expert 33mm 34 square drive powerdrive deep impact socket draper expert 71883 expert quality deep 6 point sockets forged from chrome vanadium steel hardened tempered and chemically blacked for corrosion protection supplied complete with pin and rings these sockets are for use with air electric or manual impact wrenches average lengths 95mm sold loosemanufactured and tested generally in accordance with din3122 and iso3315 specificationsdraper expert hi torq174 is a registere