Eklind 25570 Torx 7pc Ergo-Fold Key Set T10 - T40 Made in U.S.A. High Quality, Industrial Grade, Professional Tools. Made with Eklind Alloy Steel. Heat Treated for optimum strength and ductility. Finished with Eklind Black Finish to resist rust. Security (Tamper Resistant) Keys have a hole in the tip to accommodate a pin in the socket head fastener. Torx Keys will drive Torx, Torx Plus and star recess fasteners,and meet all applicable standards set forth by Acument Intellectual Properties, LLC. Torx and Torx Plus are registered trademarks of Acument Intellectual Properties, LLC. Fold-up sets include a variety of popular sizes in one convenient handle to keep you from losing individual keys. Fold a key out to a right angle to get maximum leverage. Fold a key out completely to operate like a screwdriver. 7 pieces Fold up Tool Made with industrial grade alloy steel. Has a unique finish to help prevent rust. Heat treated for superior durability.