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03B162 - Walter 1 Inch 8 NC High Speed Steel Plug Tap

Packaging: 1 per each
$188.74/ea

Usually ships within 3-5 business days

SKU: 03B162 Categories: ,

OVERVIEW

Precision Threading with Walter High-Speed Steel Taps

The Walter 1"-8 NC Plug Tap is a premium-grade threading tool designed for industrial metalworking applications where accuracy and tool longevity are paramount. Manufactured from superior High-Speed Steel (HSS), this tap is engineered to withstand the high thermal loads and torque stresses associated with cutting threads in tough materials like stainless steel and mild steel. Unlike standard carbon steel taps, Walter's HSS composition ensures the cutting edges remain sharp longer, reducing the frequency of tool changes and maintaining thread gauge accuracy over a prolonged lifespan.

This specific model features a "Plug" chamfer style, characterized by a 3-5 thread tapered lead. This geometry makes it the most versatile choice for general tapping operations, particularly for through-holes where the chips can be pushed forward or evacuated easily. The precision-ground threads are a hallmark of Walter's manufacturing process, ensuring that every cut produces a smooth, burr-free thread that meets strict tolerance requirements. The hardening and tempering process applied to the steel provides the necessary toughness to prevent snapping, a common failure mode in lower-quality threading tools.

Ideally suited for maintenance, repair, and operations (MRO) as well as production environments, this tap excels in creating new threads or chasing damaged ones. Its robust design allows for use in a variety of materials, including aluminum, mild steel, and stainless steel alloys. Whether utilized in a manual tap wrench or a machine setup, the Walter 1"-8 NC Plug Tap delivers consistent performance, ensuring that your mechanical assemblies are fastened securely and reliably.

Technical Specifications

  • Material: High-Speed Steel (HSS)
  • Thread Size: 1" - 8 NC
  • Chamfer Type: Plug (3-5 threads)
  • Finish: Bright / Precision Ground
Additional Information
Packaging Description:1 per each
Brand:Walter
Size (in):1"
Thread Type:NC (National Coarse)
Material:High-Speed Steel (HSS)
Tap Style:Plug
Threads Per Inch:8
Chamfer Length:3-5 Threads
Application Material:Aluminum, Mild Steel, Stainless Steel

INCLUDED

  • 1 x Walter 1"-8 NC Plug HSS Tap
  • Protective packaging

APPLICATIONS

  • Threading through-holes in metal plates
  • Repairing damaged or stripped 1"-8 NC threads
  • Fabrication of structural steel components
  • Machining stainless steel and aluminum parts
  • General industrial maintenance and repair

FAQ

A plug tap has a chamfer of 3-5 threads, making it suitable for through-holes or threading relatively deep into a blind hole. A taper tap has a longer chamfer (7-10 threads) which makes starting the thread easier but requires more depth to reach full thread diameter.

Yes, this Walter tap is made from High-Speed Steel (HSS), which is durable enough to cut threads in stainless steel. Using a high-quality cutting fluid is highly recommended to extend tool life.

For a 1"-8 NC thread, the standard recommended drill bit size is 7/8 inch. This provides the correct percentage of thread engagement.

Yes, using a tapping fluid or cutting oil is essential. It reduces friction, clears chips, and keeps the tap cool, which prevents breakage and produces cleaner threads.

It can be used for blind holes, but it will not thread all the way to the bottom. For threading to the very bottom of a blind hole, a 'bottoming' tap is recommended after starting the thread with this plug tap.

NC stands for 'National Coarse'. It refers to the thread pitch standard. A 1"-8 NC tap creates a coarse thread with 8 threads per inch.

This Walter HSS plug tap is versatile and can be used for both hand tapping (with a tap wrench) and machine tapping applications.

Ensure the hole is drilled straight and to the correct size (7/8"). Use plenty of lubricant, and if hand tapping, back the tap off a half-turn periodically to break the chips.