Precision meets endurance with the Wiseman Threading Tools Spiral Point Metric HSS Tap in size M20x1.5. This high-speed steel ground tap is uncoated for reliable cutting across a range of metals, from steel to aluminum, delivering crisp, accurate threads in your through-holes.

Key features

• Spiral point (gun nose) directs chips forward, improving thread quality and reducing snagging as you cut through holes.
• Right-hand thread ensures standard, intuitive operation for most projects.
• ISO 529 dimensions guarantee compatibility with standard hole sizes and reamers, minimizing guesswork in setups.
• Material and finish: High-speed steel (HSS), ground for sharpness and precision, uncoated to maximize material compatibility and heat tolerance when paired with cutting fluids.
• Metric size: M20x1.5 thread pitch, a common size for mechanical assemblies, automotive, and machinery work.

Why choose this Wiseman tap? Because it’s built for reliability in demanding shop conditions. The combination of spiral-point geometry and HSS resilience gives you consistent thread profiles, fewer re-taps, and longer tool life when used with appropriate lubrication.

Use cases and guidance

• For through-holes in steel, stainless, and nonferrous metals, where fast, clean chip evacuation matters.
• Ideal for repair jobs or fabricating new parts where you need precise M20x1.5 threads that accept standard bolts and fittings.
• Pair with a compatible drill size and a light cutting fluid; maintain steady tapping speed and axial alignment to minimize wander and tool deflection.

Size and standards at a glance

• Thread: M20 x 1.5 (metric, right-hand)
• Type: Ground HSS tap, uncoated
• Standard: ISO 529 compatible

Whether you’re building a robust machine frame, repairing a heavy-duty component, or assembling precision-driven equipment, this Wiseman spiral-point tap delivers dependable threading performance when accuracy matters most.