Wiseman Threading Tools Bottom Lead Machine Nut Metric HSS Tap - M5x0.8 is a precision-ground tapping solution designed for clean, reliable metric threads in small-diameter bores. Crafted from high-speed steel and left uncoated, this tap delivers dependable performance across a range of common machinable materials while staying ready for routine resharpening and maintenance in busy workshops.

• Material and geometry: High-Speed Steel (HSS) with a finely ground flute profile for efficient chip clearance and smooth cutting action. Uncoated to maximize compatibility with cutting fluids and to support straightforward sharpening when needed.
• Thread specification: Metric M5x0.8 with a right-hand thread, suitable for internal threading on parts requiring a precise 5 mm diameter with a 0.8 mm pitch.
• Bottom lead design: Bottom lead geometry facilitates a confident start and stable entry into the workpiece, helping to minimize chatter and ensure consistent first-pass thread formation.
• Standards and compatibility: BS 949 dimensions provide predictable interchangeability with other Wiseman threading tools and standard workshop tooling, supporting smoother setups and quicker project turnarounds.
• Ideal uses: Perfect for general-purpose internal threading in small components, assemblies, and hobbyist projects. Commonly employed in aluminum, brass, mild steel, and other machinable materials where reliable thread quality matters.
• Practical tips: Apply appropriate cutting fluid, maintain a steady cutting speed, and back off periodically to clear chips. Avoid overheating to maximize tool life and maintain crisp thread profiles.

With the Wiseman name backing your threads, you gain a trusted, repeatable tapping experience designed for consistent results—whether you’re assembling mechanical parts, repairing housings, or prototyping precision components in a home shop or professional environment.