Wiseman Threading Tools Taper Lead Metric HSS Tap Right Hand - M30x3.5 is a precision-ground tapping solution designed for reliable, clean threads in metalworking projects. This right-hand tap delivers consistent results in a range of general-purpose tapping tasks, from quick repairs to production runs.

Engineered from uncoated high-speed steel (HSS) and ground to tight tolerances, it exploits ISO 529 geometry for predictable thread formation and alignment. The result is precise tapping with smooth chip evacuation and repeatable thread profiles, even on standard workshop machines and hand tapping setups.

The taper lead design eases entry into the hole, helping to prevent cross-threading and chatter during the critical starting phase. With a right-hand thread, this tap is ideal for most common metric threads encountered in everyday metalworking, including larger-diameter holes where stability and accuracy matter. (M30x3.5 is a widely used standard size for robust, through-hole applications.)

• M30x3.5 metric thread
• Right-hand thread
• Taper lead for easier starting and reduced risk of cross-threading
• High-speed steel (HSS), ground for accuracy
• Uncoated for versatile use with standard lubricants
• ISO 529-compatible geometry for consistent thread form

Ideal for tapping through carbon steel, cast iron, and aluminum workpieces, this Wiseman tap supports both hand-tap and light-machine tapping operations. Its robust construction makes it a dependable choice in machining shops, repair bays, and home workshops where dependable thread formation matters as much as speed. For best results, use appropriate cutting fluid, maintain a steady tapping motion, and back off to clear chips as you approach the full thread depth.

With its taper lead geometry, metric M30x3.5 footprint, and Wiseman’s reputation for dependable threading tools, this tap is designed to stay reliable across multiple projects and materials. Whether you’re fabricating a new component or repairing a worn threaded insert, this tool provides the precision and durability you need to get the job done right.