Home Shop Walter 12-24 NC HSS Bottoming Tap
Awaiting product image

03A123 - Walter 12-24 NC HSS Bottoming Tap

Packaging: 3 per each
$16.28/ea

Package Price:

$48.84/3 per each

Usually ships within 3-5 business days

SKU: 03A123 Categories: ,

OVERVIEW

Precision Threading with Walter High Speed Steel Taps

The Walter 12-24 NC Bottoming High Speed Steel Tap is an essential tool for industrial maintenance, repair, and fabrication professionals who demand accuracy and longevity from their cutting tools. Engineered by Walter Surface Technologies, a leader in high-performance metalworking solutions, this tap is crafted from top-grade High Speed Steel (HSS). Unlike standard carbon steel taps, HSS offers superior red hardness and wear resistance, allowing this tool to maintain a sharp cutting edge even when threading tough materials like stainless steel and mild steel.

This specific model is a "bottoming" tap, characterized by its very short chamfer length of only 1 to 2 threads. This design is critical for threading "blind holes"—holes that do not go all the way through the workpiece. A bottoming tap allows the user to cut threads almost entirely to the bottom of the hole, maximizing the grip length for bolts and screws. It is typically used as the final step in a tapping sequence, often following a taper or plug tap which starts the thread.

Walter's commitment to quality is evident in the precision grinding of the threads. This ensures that every hole tapped with the 03A123 meets strict tolerance standards, providing a tight and secure fit for fasteners. Whether you are repairing damaged threads on machinery or fabricating new components from aluminum or steel, this tap delivers the performance required for professional results. Its hardened and tempered structure resists breakage, reducing downtime and tool replacement costs in busy workshops.

Key Applications

This tap is versatile and robust, suitable for a wide range of industrial environments. It excels in maintenance workshops where thread repair is common, as well as in manufacturing settings requiring precise blind hole threading. The 12-24 NC thread size is a standard coarse thread used in many mechanical assemblies, making this a staple tool for any machinist's or millwright's toolbox.

Additional Information
Packaging Description:3 per each
Brand:Walter
Item:Tap
Thread Size:12-24 NC
Material:High Speed Steel (HSS)
Tap Style:Bottoming
Application Material:Aluminum, Mild Steel, Stainless Steel

INCLUDED

  • 1 x Walter 12-24 NC Bottoming High Speed Steel Tap

APPLICATIONS

  • Creating threads in blind holes where full thread depth is required
  • Repairing damaged or stripped 12-24 NC threads
  • Machining threads in stainless steel, mild steel, and aluminum
  • General maintenance and repair operations (MRO)
  • Fabrication of custom metal parts and assemblies

FAQ

A bottoming tap has a very short chamfer (1-2 threads) and is used to cut threads as close as possible to the bottom of a blind hole (a hole that doesn't go all the way through the material).

While possible in soft materials, bottoming taps are difficult to start straight because they lack a tapered lead. It is best practice to start the thread with a taper or plug tap and finish with the bottoming tap.

This High Speed Steel (HSS) tap is suitable for cutting threads in aluminum, mild steel, and stainless steel.

12-24 NC refers to the thread size. '12' is the diameter designator (approx. 0.216 inches), '24' is the number of threads per inch, and 'NC' stands for National Coarse.

Yes, using a suitable cutting fluid or tapping paste is highly recommended to reduce friction, dissipate heat, and extend the life of the tap.

Yes, High Speed Steel (HSS) is harder and more heat-resistant than carbon steel, allowing it to cut tougher materials and last significantly longer.

A plug tap typically has a chamfer of 3-5 threads, while a bottoming tap has a chamfer of only 1-2 threads. The bottoming tap threads deeper into a hole.

Related products