Draper expert 19 piece 1 2 square drive hi torq metric impact socket set draper expert 54651 b i expert quality i b 6 point sockets and accessories 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 packed in sturdy steel case br br b b br br draper expert hi torq 174 is a registered trademark of draper tools ltd draper expert 54651