Engineered for serious metalworking and dependable DIY projects, the Wiseman Threading Tools Second Lead Metric HSS Tap in M15x1.75 delivers fast, clean threads with enduring performance. This general-purpose tap is designed to handle a variety of metals while keeping precision and control at the forefront of every cut.

• High-speed steel, ground thread, uncoated: Built for durability and sharpness, the tap features a precision-ground thread profile that minimizes chatter and delivers consistent thread quality without a coating that can obscure tool feedback.
• ISO 529 dimensions, right-hand thread: The M15x1.75 size adheres to standard metric tapping specifications, ensuring reliable compatibility with common hole sizes and threaded inserts in metalworking projects.
• Second lead (double-start) design with USA plug lead: The second-lead configuration speeds up threading in through-holes, reducing the number of turns required and increasing productivity on longer taps or busy workflows.
• Versatile for multiple metals: Ideal for through-holes in steel, aluminum, brass, and similar alloys, making it a go-to choice for shop benches, fabrication work, and maintenance tasks.
• Practical usage tips: Start with a clean, properly pre-drilled pilot hole, lubricate with a light tapping fluid, keep the tap square to the workpiece, and back off frequently to break chips and prevent binding. For through-holes, ensure sufficient depth to accommodate the second-lead tapping action.

Whether you’re shaping precision threads for fasteners, fixtures, or custom components, this Wiseman tap provides reliable performance and predictable results. It’s an excellent addition to any machinist’s toolkit, offering a balance of fast cutting, accuracy, and durability that stands up to repeated use in a professional workshop or hobbyist setup.