- Complete six-size NPT tap set covering 1, 3/4, 1/2, 3/8, 1/4 and 1/8 inch to fit a wide range of pipe wall requirements. - Broad material compatibility: works with aluminum, iron, stainless steel, copper, brass and plastics (PP); suitable for cleaning, repairing, or restoring damaged or clogged pipe threads. - Clear, practical use cases: Plumbing repairs to fix damaged water-line threads; automotive maintenance to rethread fittings on fuel, cooling, or exhaust systems; construction projects to repair threaded connectors in metal or plastic piping. - Organized portability: includes a durable storage case to keep taps and accessories neatly arranged and easy to transport between job sites. - Durable, reliable performance: built with robust construction for long service life and precise tapping results in demanding environments. - Why you need it: eliminates the need for costly replacements by restoring threads, saves time with a ready-to-use range of sizes, and reduces downtime on plumbing, automotive, and construction tasks.