Wiseman Second Lead Metric HSS Tap, Right-Hand M30x3 — a high‑speed steel threading tool engineered for fast, clean internal threads in metalworking projects. This uncoated, ground tap is built for durability and precision in general‑purpose tapping tasks.

Key characteristics that matter in the workshop:

• Second lead design accelerates thread formation, reducing tapping time and minimizing tool wear when creating through‑holes or blind holes.
• Right‑hand thread with M30x3 geometry matches standard metric fasteners and threaded components for reliable assembly.
• ISO 529 compliant dimensions ensure compatibility with standard drill sizes and hole tolerances, simplifying tool selection and pairing with compatible taps and inserts.
• High‑speed steel (HSS), ground finish, uncoated for consistent cutting edges, precise flute geometry, and predictable performance under typical workshop conditions.
• General‑purpose use across common metals like mild steel and alloy steels; suitable for aluminum and softer alloys when proper lubrication is applied.

How to achieve best results:

• Drill the correct pilot hole diameter for M30x3 tapping, ensuring the hole is straight and deburred before tapping.
• Apply appropriate cutting fluid or lubricant to reduce friction, and maintain steady, perpendicular alignment to the workpiece.
• Turn the tap slowly with a tap wrench or machine tap holder; with the second‑lead design, back off periodically to break chips and prevent binding.
• Clean the newly formed threads and test with a compatible bolt to verify fit and tolerance.

Ideal for:

• Mechanical hobbyists performing automotive repairs, equipment maintenance, or custom fabrications.
• Machine shops and prototyping environments that require reliable, repeatable internal threading performance.
• Educational labs teaching metalworking fundamentals with dependable tooling.

Why this Wiseman tap stands out: the combination of a faster second‑lead action, ISO‑standardized geometry, and the rugged, uncoated HSS construction delivers dependable threading performance day after day. Whether you’re building a new component or repairing an assembly, this tap helps you thread with confidence and efficiency.