Wiseman Threading Tools Second Lead Metric HSS Tap Right Hand - M42x2 is a precision ground high-speed steel tap designed for reliable, general‑purpose metal threading. Built to ISO 529 dimensions, this right-hand, second-lead tap delivers smooth cutting action and consistent thread quality across standard metric sizes. The uncoated finish keeps things simple and predictable, making it a dependable choice for everyday tapping tasks in workshop environments.

Why this Wiseman tap stands out

• Second-lead design: An extra lead reduces the torque required to advance the tap and helps start and progress the thread more smoothly, especially in through-holes or medium-density metals.
• High-speed steel (HSS) ground finish: The HSS substrate provides excellent edge retention and toughness, while the ground finish ensures accurate thread engagement and clean material removal.
• Uncoated, straightforward performance: With no coating to chip or wear away, this tap stays predictable under standard shop lubricants and cutting fluids, giving you consistent results over repeated uses.
• Metric precision, ISO 529: Sized for the M42x2 thread with ISO-compliant dimensions, ensuring compatibility with standard metric fasteners and mating components.
• Right-hand threading: Suited for the vast majority of conventional tapping projects where the thread advances in the direction of tool rotation.

Ideal use cases

• General workshop tapping in steel and other machinable metals where dependable, repeatable threads are required.
• Automotive, machinery, and maintenance tasks that demand a robust tap for through-holes and general-purpose threading jobs.
• Prototyping or small-batch production where consistent thread quality and ease of use save time and effort.

Practical tips for best results

• Apply a suitable tapping fluid or cutting oil to reduce friction, improve chip evacuation, and extend tool life.
• Align the tap with the workpiece to avoid off-axis cutting, and begin with light, steady pressure to establish the thread.
• Advance gradually and back off periodically to break and clear chips, then continue to the full thread depth.
• Match the tap size to the hole diameter and use a proper depth stop or threading guide to maintain straight, clean threads.
• Clean the workpiece and tap after use to prevent buildup that could affect future threads.

What you’ll achieve with this tap

With the Wiseman Second Lead HSS Tap in M42x2, you’ll experience precise thread formation, improved start-up behavior, and reliable performance across typical metalworking projects. The combination of robust HSS material, a second-lead geometry, and ISO-standard dimensions translates to fewer rejected parts and more consistent fastener fitment. This tap is a practical, long‑term tool for machinists, hobbyists, and shop technicians who value accuracy, durability, and straightforward maintenance.