Meet the Wiseman Threading Tools Second Lead Metric HSS Tap Left Hand - M22x2.5, a precision-built tapping tool designed for reliable left-hand threading in metric holes. This high-performance tap is ground for accuracy, uncoated for broad cutting compatibility, and finished to ISO 529 dimensions to ensure dependable interchange with standard metric hardware.

Key features that set this tool apart

• Material and finish: High-speed steel (HSS) with a ground flute geometry for crisp, clean thread formation. Uncoated surfaces accept cutting fluids readily, helping heat dissipation and prolonging tool life.
• Thread specification: Left-hand thread in metric size M22x2.5, with a second lead (two-start) design that advances the thread more quickly per revolution—reducing cycle time in suitable applications.
• Standards and compatibility: ISO 529 dimensions ensure predictable fit with standard metric holes and repairs, making it a dependable choice for shops that work across multiple brands and projects.
• Lead type: USA plug lead configuration supports a faster, more confident start, helping you thread accurately from the first rotation.
• Versatile use cases: Ideal for left-handed fasteners and reverse-threaded assemblies found in maintenance, repair, and fabrication tasks. Suitable for general-purpose threading on softer metals where precision and speed matter.

Practical guidance for best results

• Prepare the workpiece with an appropriate pilot hole to match the M22x2.5 size and avoid cross-threading.
• Lubricate with a suitable cutting fluid to reduce friction, improve chip evacuation, and extend tap life.
• Tap in the correct direction (counterclockwise) to create left-hand threads. Maintain steady, moderate pressure and avoid forcing the tool if resistance increases.
• Periodically back off to clear chips, then resume cutting to maintain smooth thread profile and accuracy.
• After tapping, clean the threads and test fit with the intended fastener to confirm proper engagement and torque performance.

This tap is built for professionals who demand consistent thread quality, efficient work cycles, and dependable performance in left-hand threading tasks. Whether you’re outfitting a shop, performing routine maintenance, or tackling a precision fabrication project, the Wiseman Threading Tools Second Lead Metric HSS Tap Left Hand - M22x2.5 delivers the reliability and control you need to complete the job accurately and efficiently.