Meet the Wiseman Threading Tools Second Lead Metric HSS Tap Right Hand - M48x5. Engineered for serious metalwork, this high-speed steel (HSS) hand tap arrives uncoated and ground to precise dimensions, delivering fast, reliable internal threads with every cut. Built for general-purpose use and ISO 529 compatibility, it’s a go-to tool for dependable threading in a wide range of materials.

Why this Second Lead tap stands out

• Second lead design — a two-start geometry that accelerates thread formation and improves chip clearance, reducing tapping time without sacrificing accuracy. Ideal when you need productive, consistent results on through-holes.
• Right-hand thread — the standard orientation for most everyday threading tasks, ensuring compatibility with common components and fasteners.
• Metric precision — M48x5 with ISO 529 dimensions guarantees thread form consistency and reliable mating with standard components designed for metric taps.
• High-speed steel, grounded and uncoated — a versatile choice for general-purpose tapping. The ground thread provides smoother cutting action and cleaner thread profiles, while the uncoated finish keeps the tool responsive across a broad material range.
• Durable, single-tap performance — designed for repeated use in workshops, fab shops, and toolrooms, delivering repeatable thread quality with minimal rework.

Ideal use cases

• General-purpose internal threading in metals such as steel, cast iron, and non-ferrous alloys when a fast, dependable tap is required.
• Manual tapping with a tap wrench or compatible setup in small to medium production runs, prototypes, or repair work where speed and consistency matter.
• Projects that benefit from standard M48x5 threads and reliable thread engagement in confined or through-hole applications.

Practical guidance for best results

• Pair with appropriate tapping lubricant to minimize heat and chip buildup, extending tap life and improving thread finish.
• Ensure alignment with the workpiece axis to avoid cross-threading; start with a light touch and steady feed, then maintain a consistent cutting pace for clean threads.
• Use the tap in a compatible tapping fixture or wrench suitable for internal threading to maximize control and accuracy.

Specifications at a glance

• Thread: Right-hand
• Size: M48x5 (metric, ISO 529)
• Lead: Second lead (double-start) design for faster cutting
• Material: High-speed steel (HSS)
• Finish: Uncoated; ground thread
• Applications: General-purpose internal threading in metalworking