Draper expert 10 piece 1 2 square drive hi torq metric impact socket set draper expert 33667 b i expert quality i b 6 point sockets forged from chrome vanadium steel hardened tempered and chemically blacked for corrosion protection hole for accessory spring loaded ball for use with air electric or manual impact wrenches display packed br br b b br br draper expert hi torq 174 is a registered trademark of draper tools ltd draper expert 33667 10 piece 1 2 square drive hi