Introducing the Wiseman Threading Tools Bottom Lead Metric HSS Tap Left Hand - M22x1.5. This high-speed steel ground thread tap is a purpose-built solution for creating precise, reliable internal threads with a left-hand pitch. Uncoated for versatile use, it adheres to ISO 529 dimensions and is specifically designed for a clean, accurate M22x1.5 thread every time.

• Material and finish: Premium high-speed steel with a ground finish for strength, rigidity, and consistent thread quality in a wide range of metals.
• Thread direction: Left-hand thread design for applications requiring reverse-threaded fasteners or components, enabling straightforward assembly and reliable locking behavior.
• Bottom lead geometry: Bottom lead construction promotes smoother entry and reduced deflection, improving start-up and cutting stability in harder materials.
• ISO 529 compliance: Dimensions and fit follow ISO 529 standards, ensuring compatibility with standard M22x1.5 holes and tapping processes.
• Size and pitch: M22 outer diameter with a 1.5 mm thread pitch delivers robust, deeper threads suitable for heavy-duty fasteners and high-load applications.
• General purpose performance: Uncoated HSS taps excel in a broad spectrum of metals—steel, cast iron, aluminum, and more—when paired with appropriate lubrication and tapping speeds.

Ideal for workshops, fabrication shops, and maintenance teams tackling left-hand threaded assemblies or reverse-rotation components. Use this tap to create secure, high-integrity internal threads in machine housings, brackets, or structural parts where a left-handed fastener is essential. Pair it with proper pilot hole preparation and illumination, apply cutting fluid to optimize tool life, and advance the tap with steady, even pressure to achieve precise engagement and clean thread depth.

Why choose this Wiseman M22x1.5 Left-Hand HSS Tap with Bottom Lead? It combines targeted left-hand threading capability with a durable HSS core and a design that minimizes entry resistance and chatter. The result is dependable thread quality, repeatable performance, and a tool that stands up to the demands of serious metalworking projects.

Whether you’re repairing a left-handed thread in a critical component or fabricating new parts that require a reverse-threaded fit, this Wiseman tap is purpose-built to deliver accurate results with every cut.