Eklind 20511 Standard 5pc Fold-Up Hex Key Set 3/16" to 3/8" 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 inch set Comes with 3/16-Inch, 7/32-Inch, 1/4-Inch, 5/16-Inch, and 3/8-Inch 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