The Wiseman Threading Tools Hand Tap is your go-to solution for precise internal threading worked by hand. Built for accuracy and long-term performance, this second-lead hand tap delivers a consistently clean thread profile with a +0.015 tolerance, ensuring tight, reliable fits in demanding assemblies.

What makes this tap stand out

• Precise tolerance for dependable threads: With a +0.015 tolerance, you get uniform thread crest-to-root engagement, reducing the chance of looseness or binding and helping parts seat smoothly every time.
• Second Lead design for faster hand tapping: Optimized for multi-start thread scenarios, this tap advances more quickly per turn while preserving thread integrity, boosting productivity on bench work or in the field.
• Durable construction: Crafted from robust materials to withstand repeated use, maintaining accuracy and resisting wear in tough workshop environments.
• Large metric size—M30x3.5: Suited for substantial, high-torque applications where strong, reliable internal threads are essential.
• Control and precision in hand operation: Designed for manual tapping, giving you tactile feedback and careful alignment to prevent cross-threading in tight or hard-to-reach spaces.

Ideal applications include maintenance and repair on heavy machinery, fabricating metal enclosures, automotive projects that demand strong internal threads, and any shop where measured, repeatable results matter. Pair this Wiseman hand tap with a compatible tap handle and cutting fluid to maximize life and performance, and you’ll experience consistent thread quality from the first cut to the last.