High quality, industrial grade professional set. Made with Eklind Alloy Steel. Heat treated for optimum strength and ductility. Finished with Eklind Black Finish to resist rust. Eklind T-handle hex keys provide extra reach and extra leverage Sizes include: 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32 and 1/4. Loop style T-keys stack neatly and fit in a compact pouch to fit most easily in your tool box. Made in U.S.A.