The Wiseman Threading Tools Taper Lead Metric HSS Tap Left Hand - M20x1.5 is a precision hand tap crafted for reliable left-hand thread cutting in metal. Constructed from high-speed steel and ground for a clean, accurate finish, this tap is a dependable choice for general purpose threading tasks where reverse-threaded fasteners are required or where you need to back out a stubborn fastener.

• Left-hand threading: Cuts threads that tighten counterclockwise, ideal for assemblies that rely on reverse torque or for easy removal of components with reverse-threaded fasteners.
• Taper lead geometry: The initial chamfered start reduces entry effort and helps prevent cross‑threading, making threading in difficult holes smoother and more controllable.
• ISO 529 compliant, M20x1.5: Precise metric dimensions ensure compatibility with standard holes, gauges, and mating parts, delivering consistent results across projects.
• High-speed steel, ground, uncoated: A durable, general‑purpose tool designed for repeated use in steel, cast iron, aluminum, and other common metals. Uncoated surfaces provide robust performance, especially when paired with appropriate cutting fluid.
• Versatile, practical threading tool: Ideal for through holes and situations where a tapered entry helps initiate the cut, followed by steady thread formation to the desired depth.

Designed for professionals and serious hobbyists alike, this tap delivers dependable performance where it matters: accurate thread formation, smooth starting, and reliable left-handed operation. Use with a compatible tap wrench and correct cutting fluid, and follow standard tapping practices to maximize tool life and thread quality. The M20x1.5 tap’s ISO 529 dimensions ensure you can pair it with standard taps, gauges, and parts, making it a practical addition to any metalworking toolkit.