The Wiseman Threading Tools Spiral Point Metric HSS Tap in Right Hand is a purpose-built tool for precise, efficient threading in metric hardware. Ground from high-speed steel and uncoated for general-purpose use, this tap is designed to deliver clean, accurate threads in a variety of common engineering materials. Meeting ISO 529 dimensions, it guarantees consistent thread form and reliable performance across standard fasteners you rely on every day.

Why this spiral point tap stands out

• Spiral point (gun nose) geometry concentrates shaving and chips forward, dramatically reducing the chance of chip packing and binding in through-holes. This design keeps threading smooth and steady, even on longer taps.
• Right-hand threads align with the majority of metric fasteners and machining setups, making it a drop-in solution for clockwise tapping operations.
• ISO 529 compliant dimensions ensure compatibility with standard nuts, bolts, and workholding fixtures, so you can source replacements with confidence.
• High-speed steel (HSS) and ground finish deliver a sharp cutting edge, durability, and consistent thread profiles. The uncoated surface is ideal for use with cutting fluids or oils to maximize life in routine shop work.
• Size: M27x3 — 27 mm major diameter with a 3 mm pitch. This metric size is well-suited for medium-to-large threaded holes in steel, cast iron, and many non-ferrous metals.

Ideal use cases

• Through-holes in machinery housings, automotive components, and structural metalwork where chips need to be expelled cleanly.
• General-purpose threading tasks in shop environments, prototyping, or repair work where quick, reliable metric taps are essential.
• Projects requiring standardization with ISO 529 dimensions to ensure smooth mating with fasteners and inserts.

Practical guidance for best results

• Lubricate with appropriate tapping oil or thread cutting fluid to extend tool life and improve surface finish.
• Begin with a light tapping feed, especially in harder materials, and maintain steady, even pressure to avoid deflection.
• Withdraw the tap gradually to clear chips, preventing re-cutting and reducing chatter.
• Pair with compatible holders and guides to maximize accuracy in large-diameter threads like M27x3.

Designed for professionals and serious hobbyists alike, this Wiseman HSS tap delivers dependable performance when you need metric threads done right—fast, clean, and repeatable.