Wiseman Threading Tools Second Lead Metric HSS Tap Left Hand - M32x1.5 is a robust, precision ground tap designed for reliable internal threading in metal. Crafted from high-speed steel (HSS) and offered uncoated for straightforward cutting with proper lubrication, this tap adheres to ISO 529 dimensions for consistent results across jobs. It features a left-hand thread and a second lead, with a standard USA plug lead configuration to fit common workshop setups.

• Left-hand threading: Ideal for parts and assemblies that tighten counterclockwise or require a reverse-acting fastener path, helping prevent loosening in dynamic systems.
• Second lead design: Accelerates thread formation by engaging more material per turn, reducing tapping time while delivering clean, accurate threads.
• High-speed steel, uncoated: Balances hardness and toughness for metalworking surfaces, with edge retention that stands up to repeated use when paired with appropriate cutting fluid.
• ISO 529 compliant: Dimensions align with standard metric taps, ensuring compatibility with standard drills and hole sizes for M32x1.5 threads.
• Ground thread: Precision-cut flute geometry supports smooth chip evacuation and consistent thread quality from start to finish.
• USA plug lead configuration: Designed to fit typical American tooling setups, making it a practical choice for workshops using standard tap wrenches or machine taps.

Why this tap fits your workshop needs

• Productivity focus: When you need to install left-handed fasteners or create reverse-rotation threads, this tap’s second-lead geometry helps you reach depth faster without sacrificing accuracy.
• Versatility across materials: Suitable for a range of metals where M32x1.5 threads are required, from machine components to repair work, provided you use the right cutting fluid and moderate feed rates.
• Reliability in everyday machining: The uncoated HSS, ground finish and ISO-standard dimensions deliver dependable performance in standard through-holes and many blind-hole applications when cutting parameters are respected.
• Clear specification alignment: Matches common engineering specs for metric taps, including size (M32x1.5) and lead type (Second Lead, Left Hand), so it complements other Wiseman tools and compatible holders.

Usage guidance and best practices

• Apply a suitable tapping fluid or cutting oil to reduce heat and extend tool life. Avoid dry tapping, which can accelerate wear on uncoated HSS taps.
• Align the tap carefully with the hole to prevent cross-threading; for left-hand threads, rotate in the counterclockwise direction to begin the cut when the setup requires a reverse-threaded part.
• Maintain steady, moderate feed and avoid forcing the tap. If chips back up, pause and back the tap out to clear the flutes before continuing.
• Respect material limitations and hole size recommendations for M32x1.5 taps; using the correct drill size is essential for achieving true thread depth and engagement.
• Store with care in a protective case to preserve the sharp edges and prevent chipping of the ground thread surfaces.

Shown in the image, this Wiseman tap is a dependable, ready-to-use solution for technicians and machinists who value precision, speed, and conformity to standard threading practices. Whether you’re outfitting a shop for routine repairs or integrating into a production workflow that requires reliable left-handed threads, the M32x1.5 second-lead HSS tap delivers consistent results with the right tooling support.