Introducing the Wiseman Threading Tools Spiral Point Machine Nut Metric HSS Tap - M4x0.7. This high-speed steel ground thread tap is designed for dependable internal threading in metal, delivering precise, repeatable results with every hole. The spiral point (gun nose) geometry directs chips forward, minimizing clogging and ensuring faster, cleaner cuts in through-holes. With a right-hand thread and BS 949 dimensions, you can trust consistent engagement with standard M4 fasteners and hardware.

Why this tap stands out

• Spiral-point (gun nose) design: optimized for through-hole tapping, pushing chips ahead of the cutting edge for smoother operation and reduced rework.
• HSS, ground precision: a carefully ground thread profile that delivers accurate thread form and longer tool life when used with proper lubrication.
• Uncoated, general-purpose: a cost-effective solution that performs well across a range of metals, from aluminum and brass to mild steel.
• BS 949 metric dimensions: M4x0.7 right-hand thread tuned to align with standard metric components and fasteners.
• Versatile for professionals and hobbyists: ideal for repair work, fabrication projects, and maintenance tasks that require reliable internal threads.

How to use for best results

• Select a pilot drill size per tapping charts for M4x0.7 (commonly around 3.3 mm) and secure the workpiece firmly.
• Attach a tap wrench or T-handle and begin cutting with a steady, clockwise motion for a right-hand thread.
• Apply cutting fluid or tapping oil to improve chip evacuation, reduce heat, and extend tap life. Periodically back off to break chips and prevent binding, especially in tougher materials.
• After tapping, deburr the hole and test with a standard M4 fastener to ensure smooth engagement.

The Wiseman Spiral Point Machine Nut Tap is the reliable choice for anyone needing precise, efficient internal threads in metal. From quick repairs in a busy shop to detailed fabrication work, this tap delivers consistent performance, helping you complete projects with confidence.