Introducing the Wiseman Threading Tools Second Lead Machine Nut Metric HSS Tap - M18x2.5, a precision-ground high-speed steel tap designed for reliable metric threading in demanding applications. Uncoated for maximum lubrication and chip clearance, this tap follows BS 949 dimensions to ensure compatibility with standard tooling setups and accessories.

Built with a second lead (USA plug) and a right-hand thread, this tap is optimized for faster material removal and smoother entry when cutting internal threads in through-holes and thicker workpieces. The HSS core balances hardness and toughness, delivering consistent thread profiles even after multiple passes in tougher metals.

• Material and finish: High Speed Steel (HSS), ground thread for precise pitch control
• Coating: Uncoated to maximize cutting fluid compatibility and ease of chip evacuation
• Standards: BS 949 dimensions for reliable compatibility with metric tooling ecosystems
• Threading configuration: Right-hand thread with second lead (USA plug) for efficient, productive tapping
• Size and pitch: Metric M18 x 2.5

Ideal for metalworking tasks across steel, cast iron, and aluminum workpieces where precision and speed matter. Use in a drill press, milling setup, or hand tapping with proper support and lubrication to achieve clean, accurate threads in brackets, housings, machinery components, and structural hardware.

Why choose this Wiseman tap? It combines a durable HSS core with a proven screw-thread geometry, designed to deliver dependable performance in busy workshop environments. The second-lead, USA-plug configuration helps you complete holes faster without sacrificing thread quality, making it a practical upgrade for professional shops and serious hobbyists alike.