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. Nut Drivers are standard length for most applications and fit over long bolts and studs. Tool Set includes metric nut driver sizes 5, 5.5, 6, 7, 8, 9, and 10mm. Internal flanges provide solid, twist-resistant shaft anchor. Tip-Ident® quickly identifies nut driver and size. Made in USA. 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.