Wiseman Threading Tools Metric Fine HSS Hand Tap Set ISO529 - M18x1.5 is your go-to solution for precise metric threading in metalwork. This uncoated high-speed steel (HSS) set is built for general purpose use, delivering reliable, clean threads with every cut. The taps are ground for accuracy, ensuring the thread form matches ISO 529 standards and fits standard M18x1.5 fasteners with confidence. The right-hand thread orientation is ideal for most projects, from repair jobs to new fabrication.

Key features and what they mean for you

• High-speed steel ground taps designed for durability and consistent performance across a range of metals, including steel, cast iron, aluminum, and brass.
• Uncoated finish — versatile and predictable cutting behavior, with fewer coating-related variables in everyday workshop tasks.
• ISO 529 compliant dimensions ensure your threads are standard, interchangeable, and compatible with hardware headers, nuts, and fasteners that adhere to metric specifications.
• Right-hand thread configuration—typical for most applications, providing straightforward operation and reliable engagement.
• Includes taper, second (plug), and bottom taps to cut threads progressively from the pilot hole to full depth in a single hole.

Why this set matters in your workshop

• Consistent thread quality thanks to precision grinding and a geometry designed for smooth chip evacuation, reducing the risk of cross-threading and binding.
• Versatility for everyday tasks — ideal for building, repairing, and maintaining equipment, machinery housings, brackets, and fixtures that use metric fine threads.
• Practical for both professionals and serious hobbyists who demand reliable results without guessing drill sizes or tap sequences.
• Plan for complete thread depth with the taper, plug, and bottom taps, ensuring a secure fit for fasteners in a single operation.

Use cases and scenarios

• Repairs: restore stripped or worn M18x1.5 threads in motors, housings, or chassis components.
• Fabrication: add precise metric threads to new metal pieces for adjustable assemblies and removable fixtures.
• Maintenance: service equipment that relies on standard metric fasteners, keeping machines running with accurate threads.
• DIY projects: create threaded openings in projects made from steel, aluminum, or other machinable metals with predictable results.

How to get the best results

• Use appropriate cutting fluid or light oil to reduce heat and improve finish while threading.
• Align the tap carefully with the hole to avoid cross-threading; start with the taper tap and progress to the second and bottom taps.
• Turn slowly, apply steady pressure, and back off regularly to break chips and prevent binding.
• Support the workpiece and use a compatible tap wrench for control and even cutting pressure.

In the included image, you’re seeing the Wiseman taps from multiple angles, illustrating the tapered, plug (second), and bottom leads that work together to deliver clean, accurate metric threads every time.