Eklind 21151 Metric 6pc Fold-Up Hex Key Set 3mm to 10mm N/A Imported 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. 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. Eklind Classic Steel Fold-up sets are compact to fit most easily in your pocket. Meets or exceeds all applicable standards and regulations set forth in ANSI, ASME, RoHS, REACH, CA prop 65 and Dodd-Frank Conflict Minerals legislation. Classic fold-up metric set Comes with 3MM, 4MM, 5MM, 6MM, 8MM, and 10MM hex keys Housed in a one-Piece comfort grip handle designed to operate smoothly Comfort grip handle holds the keys firmly in any desired work position