5-Piece HSS NPT Pipe Tap Set – 1/8" to 3/4" Thread Sizes

$124.17 $140.35

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5-Piece HSS NPT Pipe Tap Set – Precision Threading for Metal Pipe Work

Cut clean, accurate NPT pipe threads every time with this professional-grade 5-Piece High-Speed Steel (HSS) NPT Pipe Tap Set. Whether you're working on plumbing fittings, hydraulic lines, or metalworking projects, this comprehensive set covers the most common National Pipe Taper (NPT) thread sizes in one convenient kit.

What's Included

1/8" – 27 NPT
1/4" – 18 NPT
3/8" – 18 NPT
1/2" – 14 NPT
3/4" – 14 NPT

Key Features

High-Speed Steel (HSS) Construction – Engineered for durability and long-lasting performance in demanding metalworking environments.
Right-Hand Thread Direction – Standard right-hand thread cutting for NPT fittings and pipe connections.
Tapered NPT Design – Creates a tight, leak-resistant seal ideal for pipe and fluid system applications.
5 Essential Sizes – Covers the most commonly used NPT pipe thread sizes, making this a versatile addition to any workshop or toolbox.
Precision Ground Flutes – Ensures smooth chip evacuation and cleaner thread cutting on steel, iron, aluminum, and other metals.
Model Number: 1422

Specifications

Material	High-Speed Steel (HSS)
Thread Type	NPT (National Pipe Taper)
Thread Direction	Right-Hand
Number of Pieces	5
Sizes Included	1/8", 1/4", 3/8", 1/2", 3/4"
Country of Origin	Made in Mainland China

Perfect For

Plumbing and pipe fitting applications
Hydraulic and pneumatic system assembly
Automotive and industrial metalworking
DIY metalworking and fabrication projects
Repair and maintenance of threaded pipe connections

Frequently Asked Questions

Q: What materials can the HSS NPT pipe tap set be used on?

A: This high-speed steel (HSS) NPT pipe tap set is suitable for threading a variety of metals including mild steel, cast iron, aluminum, brass, and copper. HSS construction ensures the taps maintain their cutting edge through repeated use on hard materials.

Q: What is the difference between NPT and standard machine thread taps?

A: NPT (National Pipe Taper) taps cut a tapered thread specifically designed for pipe fittings and fluid/gas connections. The taper creates a self-sealing fit when tightened, making it ideal for plumbing and hydraulic applications. Standard machine taps cut straight (parallel) threads used for bolts and fasteners.

Q: Do I need a tap wrench to use these pipe taps?

A: Yes, a tap wrench or suitable handle is recommended for best control and results. These taps are designed to be used with a standard T-handle or tap wrench, which provides the torque and precision needed for clean, accurate thread cutting.

Q: Are these taps suitable for both hand tapping and machine use?

A: These HSS NPT taps are primarily designed for hand tapping. While they can be used in low-speed tapping machines, always ensure appropriate speeds and cutting fluid are used to prolong tap life and achieve the best thread quality.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.

We prioritize quality in selecting the materials for our items, choosing premium fabrics and finishings that ensure durability, comfort, and timeless appeal.

We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.