The Wiseman Threading Tools Second Lead Metric HSS Tap Right Hand - M42x4.5 is a high-precision, general‑purpose tapping solution built for confident, repeatable results in metalworking projects. Ground from premium High-Speed Steel (HSS) and left uncoated, this tap is ready to handle a range of materials with steady performance, from soft alloys to tougher steels, while maintaining accurate thread form.

• Size and standards: M42x4.5 metric thread, right-hand, ISO 529 dimensions, ensuring compatibility with standard holes and fasteners in metric applications.
• Lead design: Second lead for faster engagement and smoother entry, making it well suited for production runs or deeper holes where productivity matters.
• Construction: High-speed steel ground thread for precise flute geometry and long wear life; uncoated design favors reliable chip clearance and straightforward use in a variety of shop lubricants.
• Geometry and drive: Conventional hand-tap form with a square shank for secure gripping in a tap wrench, delivering consistent torque and control during manual or machine-assisted tapping.
• Application focus: Ideal for creating clean, repeatable internal threads in steel, cast iron, and nonferrous metals where metric fasteners of M42x4.5 are required. A solid choice for repairs, fabrication, and hobby machining alike.

Why choose this tap over alternatives? The second-lead design accelerates thread formation without sacrificing thread accuracy, reducing the number of passes needed for a complete thread and minimizing workpiece distortion. The ISO 529 compliance guarantees that the finished thread will mate with standard M42x4.5 bolts and nuts, enabling dependable assembly across many projects.

Practical tips for best results: use a suitable tapping fluid or light oil to reduce friction, keep the workpiece firmly secured, and tap slowly with steady, even pressure. After tapping, clean the threads to remove chips and inspect for any misalignment or burrs. Store in a dry, protected environment to preserve the sharpness of the ground thread profile.

Whether you’re equipping a metalworking shop, upgrading a home workshop, or tackling a precision repair job, the Wiseman HSS Threading Tap in M42x4.5 delivers reliable performance, predictable results, and a durable build designed to stand up to regular use in demanding settings.