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Walter 5/8-18 NF High-Speed Steel Taper Tap

$77.44/ea $66.62/1 per each only $66.62/eaSave 14%

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OVERVIEW

Reliable Threading Solutions for the Fabrication Shop

Every welder and fabricator knows the sinking feeling of a tap snapping off inside a critical part. It turns a five-minute job into an hour-long nightmare of extraction and repair. The Walter 03B104 5/8-18 NF Taper Tap is built to prevent that scenario. Crafted from high-quality High-Speed Steel (HSS), this tap is designed to be tough, not just hard. It resists the twisting forces that often shatter lesser quality carbon steel taps, giving you the confidence to cut threads in heavy steel plates, stainless brackets, or aluminum fixtures without constant fear of breakage.

The "Taper" style of this tap is particularly friendly for hand use in the shop. Unlike a plug or bottoming tap which has a blunt start, the taper tap has a long, gradual entry. This allows the tap to self-align more easily with the hole, helping you start the thread straight every time. This is crucial when you are tapping holes on a large frame or assembly where you can't put the part in a drill press. The 5/8-18 Fine thread is perfect for applications requiring high strength and vibration resistance, common in automotive mounts and heavy equipment repairs.

Whether you are fabricating a new custom assembly or repairing stripped threads on a piece of machinery, this Walter tap cuts cleanly and efficiently. It clears chips effectively, especially in through-holes, preventing binding. To get the best results and keep the tap sharp for years, simply pair it with a good cutting fluid or paste. Add the Walter 5/8-18 NF Taper Tap to your toolbox and ensure you have the professional grade edge needed to finish your metalworking projects with precision and speed.

Additional Information
Brand:Walter Surface Technologies
Used To Cut:Steel, Stainless Steel & Aluminum
Packaging Description:1 per each
Thread Size:5/8"-18
Thread Type:NF (National Fine)
Material:High-Speed Steel (HSS)
Chamfer Style:Taper
Product Type:Threading Tap

INCLUDED

  • 1 x Walter 5/8-18 NF Taper HSS Tap

APPLICATIONS

  • Creating new internal threads in aluminum, mild steel, and stainless steel
  • Repairing damaged or stripped 5/8-18 NF threads
  • Tapping through-holes in fabrication projects
  • Automotive and machinery maintenance requiring fine thread fasteners
  • General industrial maintenance and repair operations (MRO)

FAQ

A taper tap has a more gradual chamfer (7-10 threads) compared to a plug tap (3-5 threads). This makes the taper tap much easier to start straight in a new hole, distributing the cutting force over more teeth.

Yes, the Walter 03B104 is made from High-Speed Steel (HSS), which is hard and durable enough to cut threads in stainless steel, as well as mild steel and aluminum.

This tap has a thread pitch of 18 threads per inch (TPI), which is the National Fine (NF) standard for a 5/8" diameter.

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

Taper taps are best suited for through-holes or for starting threads. Because of the long tapered tip, they cannot thread all the way to the bottom of a blind hole. You would typically start with this taper tap and finish with a bottoming tap if needed.

For a 5/8"-18 NF thread, the standard tap drill size is typically 37/64".

Fine threads are stronger in tension and shear because of their larger minor diameter. They also allow for finer adjustment and are less likely to loosen under vibration.
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