The Forney 22941 Industrial Pro 7/16" x 14 plug tap, carded, high speed steel (HSS) Unified National Coarse (UNC) plug tap. Includes 9-degree chamfer angle (3-5 pitches chamfered) and 3-5 tooth height. For use in most tapping applications. Suitable for blind holes where the hole is deeper than the threads required. Forney Industries is one of America"s longest operating family-owned metal working product companies. Founded in 1932, Forney offers more than 5,000 products for the hardware, automotive, farm & ranch and do-it-yourself markets. If you"ve got metal working questions, we"ve got answers. Were committed to your success regardless of location size or needs. 7/16-inch(11.13mm)-by-14 plug tap. Claims for warranty must be made within 90 days of the date of purchase. Proof of purchase required. This warranty does not cover any product that has been subject to misuse, neglect, negligence or accident, or that has been used in any way contrary to the purpose intended.