Meet the Wiseman Threading Tools Bottom Lead Metric HSS Tap Left Hand - M35x1.5, a precision-ground high-speed steel tool designed for dependable, accurate threading in metalwork. This uncoated, general-purpose tap delivers crisp thread forms and consistent performance across a range of materials, built to handle both repair and fabrication tasks with confidence.

Engineered for precision and reliability

• High-speed steel ground thread: ensures clean threads, durable cutting edges, and long tool life even under demanding use.
• Uncoated, general-purpose finish: versatile for a wide range of metals and compatible with standard cutting fluids for smooth operation.
• Left-hand thread with bottom lead geometry: ideal for applications requiring reverse-threading or anti-loosening setups, and designed to start and cut threads with improved guidance in deep or challenging holes.
• Metric size M35x1.5, ISO 529: aligns with standard metric components and ensures predictable, interchangeable results in compatible assemblies.

This tap is a practical choice for machinists and hobbyists who need a reliable left-hand tapping solution. Use it for creating or repairing left-hand threaded connections, or for projects where reverse threading helps secure components against vibration or rotation. It performs well in common machining materials such as aluminum and mild steel, delivering repeatable results with proper lubrication and steady technique.

Practical tips for optimal results: apply a quality cutting fluid or oil, maintain a clean, straight alignment with the hole, and use a patient, controlled feed to avoid chatter. Pair this tap with a compatible tap handle and appropriate drill depth to maximize thread quality and tool life. The Wiseman M35x1.5 left-hand tap stands out through its combination of precision ground geometry, durable HSS material, and a design tailored for reverse-thread applications—making it a smart, time-saving addition to any metalworking toolkit.