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Walter 5/8-11 HSS Taper Tap for Steel and Stainless

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

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OVERVIEW

Reliable Threading for the Welding Shop

When you're in the middle of a fabrication job or repairing heavy equipment, you need tools that work as hard as you do. The Walter 03B101 5/8"-11 NC Taper Tap is built to handle the rigors of the welding and metalworking shop. Made from tough High-Speed Steel (HSS), this tap cuts through mild steel, aluminum, and even stainless steel without dulling prematurely. If you've ever struggled with cheap taps that chip or snap halfway through a hole, you'll appreciate the resilience and cutting power of this Walter tool.

The "Taper" style of this tap is designed to make your life easier. It features a long, tapered tip that helps you get the tap started in the hole straight and true. This is crucial when you are tapping by hand and need to avoid cross-threading, which can ruin a workpiece. Because the cutting action is spread out over several threads, it requires less muscle to turn, making it less likely to bind up or break deep inside a hole. It's the perfect first step when creating new threads in a through-hole.

Maintenance and repair operations (MRO) often involve cleaning up damaged threads or fabricating custom brackets and mounts. This 5/8"-11 tap is a standard size for many heavy-duty bolts and fasteners used in industrial machinery. Having a high-quality HSS tap on hand means you can quickly fix stripped threads or tap new holes to keep production moving. The precision-ground threads ensure that your bolts fit smoothly and securely every time.

Don't let a broken or dull tap slow down your project. Upgrade to the Walter 03B101 and experience the difference that professional-grade tooling makes. Remember to use a good tapping fluid like Coolcut or similar lubricants to keep the tap cool and help clear out metal shavings. Whether you are a professional welder, a millwright, or a general mechanic, this tap delivers the performance you need to get the job done right.

Additional Information
Brand:Walter Surface Technologies
Size:5/8"
Thread Type:NC (National Coarse)
Material:High-Speed Steel (HSS)
Chamfer Type:Taper
Threads Per Inch (TPI):11
Tap Drill Size:17/32"
Number Of Flutes:4
Overall Length:Standard
Packaging Description:1 per each

INCLUDED

  • 1 x Walter 5/8"-11 NC Taper HSS Tap
  • Protective storage tube

APPLICATIONS

  • Creating new 5/8"-11 threads in steel, stainless steel, and aluminum
  • Repairing damaged or stripped threads in machinery
  • Maintenance and repair operations (MRO)
  • Fabrication of custom metal parts
  • Automotive and heavy equipment repair
  • Through-hole tapping applications

FAQ

The standard tap drill size for a 5/8"-11 NC thread is 17/32". Using the correct drill size is critical to ensure 75% thread height and prevent tap breakage.

A taper tap, like this one, has a longer chamfer (7-10 threads) which helps in starting the thread straight. A plug tap has a shorter chamfer (3-5 threads) and is used after the taper tap or for through holes where starting is easier.

Yes, this tap is made from High-Speed Steel (HSS), which is suitable for tapping stainless steel. However, using a high-quality cutting lubricant is highly recommended to prevent work hardening and extend tool life.

Taper taps are generally best for starting threads or for through holes. For blind holes (holes that don't go all the way through), you would typically start with a taper tap and finish with a bottoming tap to thread close to the bottom.

Yes, using a cutting fluid or tapping compound is essential. It reduces friction, dissipates heat, and helps clear chips, which significantly extends the life of the tap and improves thread quality.

NC stands for 'National Coarse'. It refers to the thread pitch standard. 5/8"-11 means the tap has a diameter of 5/8 inch and 11 threads per inch.

While it can be used in machine setups with the proper clutching or tapping head, this is a standard hand tap design. If using a hand drill, extreme care must be taken to maintain alignment and avoid side-loading which will break the tap.
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