Wiseman Metric Fine HSS Hand Tap Set – ISO 529, M20x1.25

Precision threading starts with the right tools. This Wiseman Threading Tools set is engineered for reliable, repeatable results in manual tapping tasks, delivering clean, accurate threads every time. Built for metric fine thread applications, it’s a versatile addition to any workshop, fab shop, or DIY bench.

• High-speed steel ground taps designed for general-purpose threading with strong wear resistance and consistent chip evacuation.
• Uncoated finish keeps production costs down while still providing dependable performance across a range of materials and projects.
• ISO 529 dimensions ensure compatibility with standard metric holes and fasteners, simplifying your setup and reducing guesswork.
• Right-hand thread for the vast majority of common fastening applications, making it a go-to choice for everyday fabrication and repair work.
• Lead progression: taper, second, and bottom—from the initial entry cut to the finishing pass—designed to reduce hand effort and improve thread quality in a single setup.
• Metric fine thread, M20x1.25 provides a precise, compact thread form suitable for assemblies where strength and fit are critical.

Usage notes that help you get the most from this set: mount the workpiece securely, align the tap with the hole, and use steady, even turns with a quality tap wrench. Start with the taper lead to establish guidance, follow with the second lead for depth, and finish with the bottom lead for a clean, finished thread. Maintain a light touch and clear the chips regularly to preserve thread integrity and extend tool life.

Ideal for maintenance, repair, and fabrication projects that demand dependable metric threading. If you’re building or restoring components that require a precise M20x1.25 right-hand thread, this Wiseman hand tap set offers the right balance of accuracy, durability, and ease of use to keep your work moving smoothly.