The Forney 23030 Industrial Pro 1/8-inch x 27 high speed steel (HSS) tapered pipe tap. Manufactured from the highest quality chrome steel, SAE52100. Although not suited for production tapping, chrome steel is superior to carbon steel and ideal for hand tapping and cleaning out existing threads, offering fewer tendencies to break than most taps. 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. 1/8-inch(3.175mm)-by-27 tapered pipe 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.