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Walter 5-40 NC High Speed Steel Taper Tap

$19.52/ea $50.34/3 per each only $16.78/eaSave 14%

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OVERVIEW

Reliable Thread Repair for Fabricators

For welders and metal fabricators, having the right cutting tools is just as important as having the right welding machine. The Walter 5-40 NC Taper HSS Tap is a must-have addition to any fabrication shop's toolkit. Often, projects involve not just joining metal but also preparing it for assembly. This includes creating threaded holes for bolts and screws or cleaning out damaged threads on existing equipment. The Walter 03A051 is built to handle the rugged environment of a welding shop, offering the toughness needed to cut through work-hardened zones and various metal grades.

Constructed from premium High Speed Steel (HSS), this tap outperforms standard carbon steel taps found in general hardware stores. HSS is specifically formulated to maintain its cutting edge at higher temperatures, which is essential when tapping tough materials like stainless steel—a common material in modern fabrication. The "Taper" style of this tap features a longer chamfer at the tip, making it the easiest type of tap to start straight. This is particularly useful when working by hand in awkward positions on a large weldment, where keeping the tool square to the surface can be challenging.

Whether you are fabricating custom brackets, repairing machinery, or tapping through-holes in heavy plate, the Walter 5-40 NC Taper Tap provides the reliability you need. Its precision-ground flutes evacuate chips efficiently, preventing clogging that can lead to snapped taps. By investing in high-quality threading tools like those from Walter, fabricators can avoid the nightmare of extracting a broken tap from a finished piece, saving both time and money. This tool is designed to cut new threads or chase existing ones with minimal effort and maximum precision.

Fabrication Shop Advantages

  • Heavy-Duty Construction: HSS body withstands the rigors of cutting stainless and mild steel.
  • User-Friendly Design: Taper style helps prevent cross-threading when starting a hole.
  • Versatile Application: Perfect for both creating new threads and cleaning up weld splatter or damage in existing threads.
  • Long Service Life: Hardened and tempered to resist wear, ensuring you get more holes per tap.
Additional Information
Brand:Walter Surface Technologies
Packaging Description:1 per each
Thread Size:5-40 NC
Tap Style:Taper
Material:High-Speed Steel (HSS)
Application Material:Aluminum, Mild Steel, Stainless Steel

INCLUDED

  • 1 x Walter 5-40 NC Taper HSS Tap
  • Protective packaging

APPLICATIONS

  • Creating new 5-40 NC threads in drilled holes
  • Repairing or "chasing" damaged threads in maintenance applications
  • Tapping through-holes in metal plates and castings
  • Machining operations involving aluminum, mild steel, and stainless steel
  • Automotive and machinery repair
  • Custom fabrication and assembly work

FAQ

A taper tap, like this Walter model, has a more gradual chamfer (7-10 threads) which makes it easier to start the thread straight. A plug tap has a shorter chamfer (3-5 threads) and is typically used after the taper tap to thread closer to the bottom of a blind hole.

For a 5-40 NC thread, the standard drill bit size is a #38 drill bit. Using the correct drill size is crucial to prevent tap breakage and ensure proper thread percentage.

Yes, this Walter tap is made from High Speed Steel (HSS), which is durable enough to cut threads in stainless steel, as well as mild steel and aluminum.

Yes, using a high-quality cutting fluid or tapping lubricant is highly recommended. It reduces friction, dissipates heat, and helps clear chips, significantly extending the life of the tap.

While a taper tap can be used in blind holes, it will not thread all the way to the bottom due to its long chamfer. For blind holes, it is best used to start the thread, followed by a plug or bottoming tap to finish the threads near the bottom.

NC stands for 'National Coarse'. It refers to the thread pitch standard. A 5-40 NC tap creates a coarse thread with 40 threads per inch on a #5 diameter shaft.

High Speed Steel (HSS) retains its hardness at higher temperatures and is generally tougher than carbon steel. This allows HSS taps to cut harder materials and last significantly longer in industrial applications.

While it is possible to power tap with the correct equipment and clutch settings, taper taps are often used by hand to ensure the thread is started straight. Extreme care must be taken with power tools to avoid breaking the tap.
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