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03A083 - Walter 8-32 NC HSS Bottoming Tap

Packaging: 3 per each
$13.66/ea

Package Price:

$40.98/3 per each

Usually ships within 3-5 business days

SKU: 03A083 Categories: ,

OVERVIEW

Precision Threading with Walter High Speed Steel Taps

The Walter 03A083 is a premium-grade 8-32 NC Bottoming Tap engineered for professional metalworking environments. Crafted from top-notch High Speed Steel (HSS), this tool is designed to withstand the rigors of cutting threads into tough materials like stainless steel and mild steel, as well as softer metals like aluminum. The manufacturing process involves precision grinding of the threads, followed by a hardening and tempering treatment. This ensures that the tap maintains its cutting edge longer than standard carbon steel taps, reducing tooling costs and downtime in production or maintenance settings.

As a "Bottoming" style tap, this specific tool features a very short chamfer length, typically only 1 to 2 threads. This design is critical for applications where threads must extend as close as possible to the bottom of a blind hole (a hole that does not go all the way through the workpiece). While it can be used for through-holes, its specialized geometry is best utilized for finishing threads in blind holes after a taper or plug tap has been used to start the cut. The precision ground flutes help evacuate chips efficiently, although care should always be taken to use appropriate cutting fluid to maximize finish quality and tool life.

Whether you are repairing damaged threads in an industrial assembly or fabricating new components, the Walter 03A083 delivers consistent, high-quality results. Its robust construction minimizes the risk of breakage—a common issue with inferior taps—providing peace of mind when working on expensive or critical parts.

Additional Information
Packaging Description:1 per each, 3 per each
Brand:Walter
Used to Cut:Steel or Stainless or Aluminum
Thread Size:8-32 NC
Tap Style:Bottoming
Material:High Speed Steel (HSS)
Thread Standard:NC (National Coarse)

INCLUDED

  • 1x 8-32 NC Bottoming HSS Tap

APPLICATIONS

  • Cutting new threads in blind holes
  • Finishing threads to the bottom of a hole
  • Repairing damaged or stripped threads
  • Machining Aluminum, Mild Steel, and Stainless Steel
  • General maintenance and repair (MRO)

FAQ

A bottoming tap has a very short chamfer (1-2 threads) allowing it to cut threads to the bottom of a blind hole. A plug tap has a longer chamfer (3-5 threads) and is easier to start but cannot thread as deep into a blind hole.

The Walter 03A083 is made from High Speed Steel (HSS), which offers superior durability and heat resistance compared to carbon steel.

Yes, this HSS tap is hardened and tempered, making it suitable for cutting threads in stainless steel as well as mild steel and aluminum.

This is an 8-32 NC tap, meaning it cuts a #8 diameter thread with 32 threads per inch (National Coarse).

Yes, using a high-quality cutting fluid or tapping compound is highly recommended to reduce friction, clear chips, and extend the life of the tap.

While it can be used for through holes, it is specifically designed for blind holes where you need threads to go all the way to the bottom.

For an 8-32 tap, a #29 drill bit is typically recommended for standard thread percentage.