Dolphin HSS M-2 Hand Tap, Size: 1/16 to 4 Inch, NPT

The Dolphin HSS M-2 Hand Tap, available in sizes ranging from 1/16 inch to 4 inches, is specifically designed for tapping internal threads according to the National Pipe Taper (NPT) standard. This type of hand tap is essential for creating tapered threads in pipes and fittings used in plumbing, oil and gas, and various industrial applications.

Crafted from high-speed steel (HSS) grade M-2, the Dolphin HSS M-2 Hand Tap offers exceptional hardness, wear resistance, and heat tolerance, making it suitable for demanding threading operations in a variety of materials including steel, stainless steel, brass, and other alloys commonly used in pipe fabrication.

The hand tap features a tapered design to match the NPT thread profile, which is characterized by a 60-degree included angle and a taper of 3/4 inch per foot. This design ensures a tight and secure fit when assembling threaded pipes and fittings, providing a reliable seal against leaks under pressure.

The flute geometry and cutting edges of the Dolphin HSS M-2 Hand Tap are optimized for efficient chip evacuation during the threading process. This helps prevent chip buildup and ensures smooth and consistent thread cutting without compromising thread integrity.

The comprehensive range of available sizes, from 1/16 inch to 4 inches, covers a wide range of pipe diameters commonly encountered in industrial settings. Each tap size is engineered with precision to deliver reliable performance and consistent thread profiles, maintaining compatibility with NPT thread specifications.

To achieve optimal results and prolong tool life, it is recommended to use cutting fluids or lubricants during tapping operations. Proper lubrication helps reduce friction, dissipate heat, and improve chip evacuation, enhancing overall threading efficiency.

In summary, the Dolphin HSS M-2 Hand Tap in NPT sizes from 1/16 inch to 4 inches is a durable and reliable tool for creating tapered internal threads in pipes and fittings. Its high-speed steel construction, combined with efficient chip evacuation and compatibility with NPT standards, makes it an essential component for pipe threading tasks in various industries.