Wiseman Metric Fine HSS Hand Tap Set ISO529 – M33x1.5

Experience precision threading with a purpose-built set designed for reliable, repeatable results in a wide range of metals. This Wiseman hand tap set uses high-speed steel (HSS) that’s ground for crisp thread form and durability, ready to tackle both tough and softer materials with ease. The taps are uncoated to maximize compatibility with your preferred cutting fluid, ensuring smooth chip formation and cleaner finishes across jobs.

• ISO 529 compliant – Metric fine thread taps in M33x1.5 with a right-hand thread, delivering dependable, standardized threads that fit your metric components and assemblies.
• Lead progression for full depth – Includes taper, second (plug), and bottoming taps to cover start-to-finish threading in through-holes and blind holes alike.
• High-precision ground taps – Each tap is ground for accurate geometry, promoting consistent thread fit and smoother operation in a variety of metals.
• General-purpose, versatile tooling – Uncoated for compatibility with a broad range of lubricants and cutting fluids, making it suitable for steel, aluminum, brass, and cast iron.
• Right-hand threading – Optimized for most common mechanical assemblies where turning the tap clockwise cuts the thread reliably and predictably.
• Professional-grade for work-hardened materials – Robust enough for repair work and routine fabrication, as well as hobbyist projects that demand precise metric threads.

Use case ideas and practical notes: prepare a correctly sized pilot hole per ISO 529 guidelines, secure the workpiece, and lubricate generously to reduce friction and chip buildup. Start with the taper tap to establish alignment, then progress through the plug tap for depth, finishing with the bottoming tap to complete the thread without leaving uncut pockets. Maintain a steady, light pressure and back off periodically to break chips, then finish with a clean inspection to confirm a snug, accurate thread fit.

This Wiseman thread-tapping set is ideal for machinists, metalworkers, and serious DIY enthusiasts who demand dependable metric threads and repeatable performance. Built for reliability in everyday shop tasks, it helps you tackle repairs, fixture work, and custom components with confidence.