The Wiseman Threading Tools Spiral Point Machine Nut Metric HSS Tap – M16x2 is a purpose-built machine tap engineered for fast, accurate threading in through-holes. Ground from high-speed steel and uncoated, this tap delivers reliable performance across a range of common metals while conforming to BS 949 dimensions for trustworthy interchangeability in industrial setups.

Key advantages that matter in real-world tapping

• Spiral point design (gun nose) channels chips out of the hole and minimizes clogging, enabling clean, straight threads on through-holes with less dwell time.
• Right-hand thread and M16x2 geometry match standard metric tapping requirements, making it a go-to choice for everyday workshop tasks.
• High-speed steel, ground finish provides a sharp cutting edge, improved dimensional accuracy, and greater edge retention under typical machining speeds when used with proper lubrication.
• Uncoated for general purpose use—a versatile option that works well with a variety of materials without the added layers of coating that can affect heat transfer and chip formation in routine jobs.
• BS 949 compliant dimensions ensure compatibility with standard taps, chucks, and tap heads in standard metalworking setups.
• Machine tap designation designed for use in powered tapping operations with a suitable tapping head or machine spindle, delivering consistent depth and pitch to production-quality threads.

Ideal uses and practical considerations

Perfect for through-hole threading tasks in mild steel, aluminum, brass, and copper where fast cycle times and dependable thread quality are essential. It’s especially well-suited for production environments or hobbyist shops that rely on a machine-tapping workflow. Pair with appropriate cutting fluid or lubricant to reduce heat, extend tool life, and achieve smoother chip evacuation. Start with conservative feeds and speeds, then advance as you monitor thread finish and hole cleanliness.

What makes this tap stand out

Unlike generic hand taps, this Wiseman machine tap is purpose-built for powered tapping, offering a robust tip geometry and a spiral point that excels at pushing chips forward through the hole. The combination of precision-ground HSS, BS 949-compliant dimensions, and a focused metric thread profile ensures repeatable results, less downtime, and reliable thread formation across multiple holes with minimal adjustment.

Care and best practices

• Keep taps clean and dry after use; apply a light coating of suitable oil to prevent corrosion during storage.
• Use compatible tapping speeds and feeds; apply coolant or cutting fluid to maintain edge life and reduce friction.
• Correct workholding and alignment are essential—secure the workpiece and ensure the hole is properly deburred before tapping.