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03B165 - Walter 1 Inch - 12 NF High-Speed Steel Plug Tap

Packaging: 1 per each
$214.76/ea

Usually ships within 3-5 business days

SKU: 03B165 Categories: ,

OVERVIEW

Precision Threading with Walter High-Speed Steel Taps

The Walter 03B165 1-12 NF Plug Tap is a premium cutting tool designed for industrial maintenance, repair, and fabrication operations requiring the highest level of precision and durability. Manufactured from top-tier High-Speed Steel (HSS), this tap is engineered to withstand the high temperatures and mechanical stresses associated with cutting threads in tough metals. Unlike standard carbon steel taps, Walter's HSS composition ensures the cutting edges remain sharp longer, providing a consistent thread profile over a significantly extended service life.

This specific tool features a "Plug" chamfer style, which typically includes 3 to 5 tapered threads at the tip. This geometry makes it the most versatile choice for general purpose threading. It is aggressive enough to start threads easily in a drilled hole while being capable of threading close enough to the bottom of a blind hole for many applications, though it excels primarily in through-hole operations. The 1-12 NF (National Fine) thread configuration offers specific mechanical advantages, including greater tensile strength and finer adjustment capabilities compared to coarse threads, making it ideal for high-stress assemblies.

Walter Surface Technologies has precision-ground the threads on this tap to facilitate effortless cutting action. This grinding process reduces friction and torque requirements, allowing the operator to cut threads smoothly with less risk of tap breakage. The tool is hardened and tempered to strike the perfect balance between hardness for cutting and toughness to resist snapping under load. Whether you are working with soft aluminum, standard mild steel, or challenging stainless steel alloys, this tap delivers reliable performance and clean, accurate threads every time.

Technical Excellence

The 03B165 is designed to meet rigorous industrial standards. Its bright finish helps in chip evacuation, preventing clogging that can damage threads. It is an essential component for any machinist or MRO professional looking to maintain a versatile and reliable tooling inventory.

Additional Information
Packaging Description:1 per each
Brand:Walter
Material:HSS
Thread Size:1-12 NF
Tap Style:Plug
Used to Cut:Steel or Stainless or Aluminum
Thread Type:NF (National Fine)
Chamfer Type:Plug
Number of Flutes:4

INCLUDED

  • 1 x Walter 1-12 NF HSS Plug Tap
  • Protective storage tube

APPLICATIONS

  • Creating new internal threads in drilled holes
  • Repairing or "chasing" damaged threads in maintenance applications
  • Machining through-holes in structural steel and plates
  • Fabricating custom brackets and mounting points
  • Automotive and heavy machinery repair requiring fine threads
  • Working with aluminum, mild steel, and stainless steel alloys

FAQ

A plug tap typically has 3-5 tapered threads at the tip, making it a general-purpose tap suitable for through holes. A taper tap has a longer chamfer (7-10 threads) to help start the thread easier, while a bottoming tap has almost no chamfer (1-2 threads) for threading to the bottom of a blind hole.

The '1' refers to the nominal diameter of the tap (1 inch). The '12' refers to the thread pitch (12 threads per inch). 'NF' stands for National Fine, indicating a finer thread pitch compared to standard coarse threads (UNC).

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

Yes, using a tapping fluid or cutting oil is essential. It reduces friction, dissipates heat, and helps clear chips, which prevents the tap from binding or breaking and ensures a cleaner thread.

For a 1-12 NF thread, the standard tap drill size is typically 59/64". Always consult a tap drill chart to confirm the correct hole size for the percentage of thread engagement required.

A plug tap can be used for blind holes, but it will not create full threads all the way to the bottom. For blind holes requiring threads to the very bottom, you should start with a plug tap and finish with a bottoming tap.

HSS withstands higher temperatures without losing its hardness (temper) and is significantly more wear-resistant than carbon steel. This makes it suitable for production environments and tougher materials like stainless steel.

This tap can be used for both hand tapping (with a tap wrench) and machine tapping operations, provided the setup is rigid and aligned correctly.

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