NPS Spiral Flute Pipe Tap (Straight Fluted Parallel Threads, Non-ferrous metals, NPT 1-11.5)

Industrial Pipe Taps.Get Perfect, Leak-Free Threads: Tired of taps that break during work or make rough threads that leak? Our industrial-grade Pipe Tap is made for professionals and serious DIYers who want precise and reliable tools. Don't use weak carbon steel tools—try Cobalt HSS for better strength and longer life. Strong and Long-Lasting: Made with Cobalt steel, this tap is very hard and resists heat well. It cuts clean threads in tough materials without getting dull. Its special spiral groove pulls chips out, so no small chips are left inside. This works great for high-toughness materials, but not for cast iron. Each blade is ground to be very sharp, which ensures stable tapping, high hardness, wear resistance, smooth cutting, and no burrs. To make it even stronger, the tap gets passivation treatment. This makes it more durable, improves wear resistance, and gives a better tapping result. Also, the passivation equipment smooths the surface, removes burrs, resists oxidation, and makes it last longer. Easy to Use and Works in Many Situations: The tap has a chamfered handle, so it's easy to clamp. It has a standard square handle. You can use it on many metal materials like iron, steel, and stainless steel. It fits drilling machines, tapping machines, machining centers, CNC machines, and more. Note: Because it is so hard, do not use it with a hand-held electric drill. Precise for a Good Seal: This tap is made for UN threads. It is perfect for uses that need a gasket or O-ring seal. It works well for fixing or making internal threads Bright Finish: Smooth and polished surface. TiCN Coating: Resists wear, and is harder and more durable than TiN coating. TiN Coating: Better wear resistance, and allows faster speeds than bright-finished taps. TaC Coating: Very hard, resists sticking, has low friction—good for tough jobs.

• ENGINEERED FOR NPS PARALLEL THREADS:Specifically designed for National Pipe Straight (NPS) internal tapping. Unlike tapered NPT taps, this tool creates consistent parallel threads ideal for mechanical joints, fuel rails, and hydraulic fittings requiring a precise, uniform fit
• SPIRAL FLUTE CHIP EVACUATION: Features a high-helix spiral flute geometry that pulls chips upward and out of the hole. This design is critical for blind-hole tapping in "gummy" materials like aluminum and copper, preventing chip packing and catastrophic tool failure.
• COBALT HSS DURABILITY:Formulated from Cobalt-fortified High-Speed Steel (HSS-E) to withstand extreme thermal loads. The cobalt content maintains edge hardness at higher RPMs, significantly extending tool life compared to standard carbon steel or basic HSS taps.
• NON-FERROUS MATERIAL OPTIMIZATION: Precision-ground cutting edges excel in soft and abrasive materials including Cast Iron, Brass, Aluminum, and Steel (HRC<33). The geometry reduces torque requirements and prevents galling, ensuring a "mirror-finish" thread surface. Industrial tolerances for CNC setups, tapping machines, lathes, or mills internal pipe threads
• Thread Size:NPS 1/16-27 /Number of Chamfered Threads:2.5P /Basic major dia: 0.305 inch (7.77 mm) /Thread Limit: ANSI G / Thread length: 0.551 inch (14 mm) / Shank dia.(Ds): 0.314 inch (8 mm) / Size of Square(K):0.236 inch (6 mm) /Overall length (L ):2.125 inch (54 mm) / Right Hand / 2pcs/set