Wiseman Threading Tools Spiral Point Metric HSS Tap Left Hand - M4x0.7

Introducing the Wiseman Threading Tools Spiral Point Metric HSS Tap Left Hand - M4x0.7, a precise, general‑purpose tap engineered for dependable left‑hand threading in metric dimensions. Ground from high‑speed steel and delivered uncoated, this tap pairs robust cutting action with efficient chip management, designed to deliver clean threads in through-holes and light structural work.

• Left‑hand thread design: Specifically crafted to cut left‑hand threads, extending your capability to assemble components that rely on reverse‑rotation fasteners or non‑standard thread orientation.
• Spiral point (gun nose) geometry: The forward‑pushing spiral point evacuates chips as you cut, reducing chip packing and improving thread quality in through‑holes where clean evacuation matters most.
• HSS ground, uncoated: A durable, versatile tool that performs reliably across a range of materials with proper lubrication, providing consistent thread pitch and finish without coating interference.
• Metric M4 x 0.7: Standard small‑diameter thread size with a 0.7 mm pitch, ideal for precise fastener applications and compact assemblies requiring left‑hand threads.
• ISO 529 dimensions: Precision ground to meet international metric thread standards, ensuring compatibility with other ISO 529 tooling and accessories.

This Wiseman tap is a practical choice for workshops and production benches where compact, accurate left‑hand threading is essential. It shines in metalworking tasks like repairing left‑hand threaded components, assembling specialized fixtures, or creating secure, counter‑rotating fastener fits in aluminum, mild steel, or brass with appropriate lubrication.

Why choose this Wiseman tap? It combines a purpose‑built spiral point with a reliable HSS ground finish and ISO‑compliant dimensions, delivering repeatable results and longer tool life in everyday threading jobs. The uncoated surface reduces binding in common metals and makes sharpening or re‑threading straightforward for seasoned machinists and hobbyists alike.

Practical tips for best results: Use a light cutting oil or coolant to minimize heat and extend tool life; maintain alignment with the workpiece to prevent off‑axis threads; tap gradually, withdrawing periodically to clear chips; and choose a compatible tap handle or chuck to maximize control and accuracy during threading.

Ideal for: machinists, fab technicians, and enthusiasts who need reliable left‑hand metric taps in tight spaces, with predictable performance and straightforward operation for through‑hole applications.