The Klein Tools Metric Nut Driver Set features exceptionally strong drivers made from heat-treated, tempered steel and sport Cushion-Grip™ handles to resist slippage and increase potential torque. Each shaft in this 7-piece set is fully chrome plated to resist corrosion, providing you with lasting durability and performance. Made in USA Tool Set includes metric nut driver sizes 5, 5.5, 6, 7, 8, 9, and 10mm 3" long shafts Nut Drivers are standard length for most applications and fit over long bolts and studs Internal flanges provide solid, twist-resistant shaft anchor Tip-Ident® quickly identifies nut driver and size Full hollow shafts facilitate work on stacked circuit boards or other long bolt applications Premium chrome plated shaft for smooth feel and corrosion resistance Cushion-Grip™ handle allows for greater torque and comfort Handle end is also color coded for easy identification Meets or exceeds applicable ASME/ANSI specifications