Meet the Wiseman Second Lead Metric HSS Tap in M36x1.5 — a precision threading tool designed for dependable, efficient threading in a wide range of materials. This high-speed steel (HSS) ground tap is uncoated for a straightforward cutting action and is engineered to ISO 529 dimensions, delivering consistent thread profiles every time. With a right-hand thread and a two-start (second lead) design, it cuts faster than standard taps while maintaining control and accuracy, making it a go-to choice for professional machinists and serious hobbyists alike.

• Material and finish: High-speed steel, ground for clean, precise teeth; uncoated to work well with common cutting fluids and lubrication without interference from coatings.
• Thread geometry: Metric M36x1.5 with a right-hand thread, tailored for reliable best-practice tapping in a variety of metals.
• Lead design: Second lead (two-start) configuration accelerates the cutting process and enhances chip ejection, reducing tapping time and improving thread quality on larger diameters.
• Standards and compatibility: ISO 529 compliant to ensure consistent thread form and compatibility with standard machine taps, taps wrenches, and tapping setups used in North American shops.
• General-purpose utility: Ideal for through-holes and common fabrication tasks involving mild steel, cast iron, aluminum, and other ductile metals where a robust, reliable internal thread is required.

Why this tap stands out: the combination of a precisely ground HSS flute, uncoated cutting action, and a two-start lead translates to faster, smoother tapping with deeper, cleaner threads. The large M36x1.5 size is designed for demanding hole-tapping applications where you need robust internal threads that won’t back out under load. The tool’s build supports repeated use in busy shops, offering predictable performance that helps keep projects on schedule.

Practical use tips to get the most from your Wiseman tap:

• Prepare the hole with an appropriate pilot drill size according to standard tapping charts for ISO 529 thread forms to achieve the correct thread depth.
• Lubricate generously with a reliable cutting oil or tapping fluid to reduce friction, extend tap life, and improve finish quality.
• Use a tapping wrench or a machine tap holder. Keep the tap square to the workpiece and apply steady, even pressure while maintaining consistent feed.
• Lift and back out the tap periodically to break chips and prevent binding, especially on deeper holes or tougher materials.
• After tapping, deburr the entry and exit of the thread to ensure a clean, ready-to-use internal thread.

Who is this ideal for? Shops and workshops that regularly fabricate components requiring sturdy internal threads in metric sizes, including parts fixtures, mounting holes, and structural members. The Wiseman M36x1.5 two-start HSS tap is particularly well-suited for technicians who value speed without sacrificing thread integrity, and for operators who rely on consistent performance across multiple taps in a production cycle.