Wiseman Threading Tools Bottom Lead Metric HSS Tap – M18x2 (Right Hand) is a precision-ground hand tap built for reliable, repeatable thread formation in metalworking projects. Crafted from high-speed steel (HSS) and finished uncoated, this tap delivers robust cutting performance while maintaining dimensional accuracy that aligns with ISO 529 standards. The right-hand thread and bottom-lead design mean you can start cleanly and thread steadily toward full depth, reducing chatter and easing chip evacuation as you work.

Designed for versatility, this tap excels in a range of materials—from steels and cast irons to aluminum alloys—making it a dependable choice for maintenance, repair, and fabrication tasks. The M18x2 metric size is one of the most common coarse-thread configurations, ensuring compatibility with a broad set of fasteners, dies, and threaded components used in automotive, mechanical, and workshop applications. The bottom lead reduces entry resistance, helping you engage the cut early and maintain a smooth cutting action throughout the thread formation.

Specifications at a glance
- Size: M18 x 2 (metric coarse thread)
- Thread direction: Right-hand - Lead type: Bottom Lead - Material: High-speed steel (HSS) - Finish: Uncoated - Standard: ISO 529 - Application: General-purpose tapping for through and blind holes in common metals

1. Prepare the hole with a drill size appropriate for M18x2 per ISO 529 guidelines for your material.
2. Lubricate generously with suitable cutting oil to reduce heat and extend tool life.
3. Begin tapping with a tap wrench or suitable holder, maintaining steady pressure and a straight guide to avoid cross-threading.
4. Withdraw intermittently to break chips, then complete the full thread depth as required for the job.

With the Wiseman M18x2 bottom-lead HSS tap, you gain a dependable, metalworking partner capable of delivering clean, accurate threads across a variety of projects. Whether you’re refurbishing equipment, servicing machinery, or building new assemblies, this tap is designed to deliver consistent results and long tool life in everyday workshop use.