Draper expert 10mm 12 square drive hi torq deep impact socket draper expert 12743 expert quality deep 6 point sockets forged from chrome vanadium steel hardened tempered and chemically blacked for corrosion protection these sockets are for use with air electric or manual impact wrenches overall lengths 78mm display packed draper expert hi torq174 is a registered trademark of draper tools ltd draper expert 12743 17mm 12 square drive hi torq deep impact socket