The Wiseman Threading Tools Bottom Lead Machine Nut Metric HSS Tap - M20x2.5 is a purpose-built internal-thread cutting solution designed for dependable metric threading in metalwork. Crafted from high-speed steel and precision-ground, this tap delivers clean, accurate threads with consistent pitch across the full depth of the hole. It’s uncoated for general-purpose performance, making it a versatile choice in everyday machining tasks.

• Material and finish: High-speed steel (HSS), ground for sharp cutting edges and precise thread formation; uncoated for straightforward use in a range of materials.
• Thread and size: Metric M20x2.5 with a right-hand thread, built to cut standard internal threads that fit M20 nuts and counterparts.
• Bottom lead design: Bottom lead configuration engineered for efficient entry in constrained or recessed tapping positions.
• Standards: BS 949 dimensions ensure reliable compatibility with standard metric components and fasteners.
• Applications: Ideal for general-purpose tapping in steel, cast iron, and other common engineering metals when used with proper cutting fluid and appropriate speed/feeds.
• Operational guidance: Use with a drill press or tapping machine, maintain steady cutting pressure, apply suitable lubrication, and back off gradually to break chips cleanly for a smooth thread finish.
• Care and longevity: Clean after use, keep dry, and store in a protective holder to preserve edge integrity for repeated jobs.

Whether you’re repairing damaged threads in a machine housing, fabricating new components for a gearbox, or producing precise metric threads in a low-volume workshop, this M20x2.5 tap delivers reliable performance, consistent pitch, and durable cutting edges that you can trust project after project.