OFD1061 Features: * High quality, industrial grade, professional set * Made with Eklind® Alloy Steel * Heat treated for optimum strength and ductility * Eklind® ball-hex keys will drive a fastener at up to a 30 degree angle Sizes include: 4mm, 5mm, 6mm, 8mm and 10mm. Fold a key out to a right angle to get maximum leverage. Fold up sets include a variety of popular sizes in one convenient handle to keep you from losing individual keys. Fold a key out completely to operate like a screwdriver. Eklind® Classic steel fold-up sets are compact to fit most easily in your pocket. Made in the U.S.A. * 5 Piece Metric Ball End Fold-Up Hex Key Set Color/Finish: * Finished with Eklind® Black Finish to resist rust Warranty: * Lifetime warranty does not cover abuse