Introducing the Wiseman Threading Tools Taper Lead Metric HSS Tap Left Hand - M10x0.75, a precision internal thread tap built for metalworking professionals who demand consistent, high-quality results. This high-speed steel (HSS) tap is ground for accuracy, uncoated for direct, tactile cutting feedback, and engineered to ISO 529 dimensions, ensuring reliable compatibility with standard holes and threads.

Smart geometry for smoother starts

The taper lead design engages the workpiece gradually, reducing the risk of cross-threading and chatter as you begin the cut. This makes it particularly valuable in tight tolerances, through-hole work, or situations where a clean, straight thread is essential from the very first rotation.

Left-hand thread, right results

With a left-hand thread, you’ll cut or chase threads that tighten in the opposite direction. This tap is ideal for applications like reverse-rotation assemblies, fixtures, or components where a counterclockwise turn is required to secure the system. The result is a precise, reliable left-handed internal thread that stays put under the intended loads.

Specifications at a glance

• Tool type: Taper lead left-hand internal thread tap
• Material: High Speed Steel (HSS) ground for crisp cutting edges
• Coating: Uncoated for true metal-to-edge contact and efficient heat dissipation
• Size: M10 x 0.75 (left-hand thread)
• Standard: ISO 529 dimensions
• Applications: Internal threads in metal, suitable for through holes and compatible with proper technique in certain blind-hole situations

Pro tips for best results

Pair this tap with an appropriately sized pilot hole, use a quality cutting fluid or lubricant, and maintain steady, perpendicular alignment to the workpiece. For left-hand threads, turn counterclockwise to cut and advance gradually to full depth, pausing to break chips and prevent binding for a clean, accurate thread finish.

Why Wiseman stands out

Wiseman threading tools are trusted by professionals who value durability, precision, and practical design. This taper lead HSS tap delivers consistent thread quality, ease of starting, and dependable performance in demanding metalworking tasks, helping you complete fixtures and assemblies with confidence.