Machine screw & fractional plug taps. Precision cut threads, accurately formed for consistent, exact threading. Heat treated and tempered for file hard threads, and longer, useful life. Designed for hand cutting applications. For use with tap wrenches to cut internal threads. 75% thread engagement. Plug style is the most commonly used style of tap -3 to 5 threads chamfered. Product Features:National pipe thread tap sizes for internal threading on all types of pipeHeat treated and tempered for file hard threads and longer useful lifeDesigned for hand cutting applicationsThe plug style tap is the most commonly used style of tap with 3 to 5 threads chamferedNational Standard
