Product Specifications:
This HSS spiral point tap is specifically designed for UNC 1/2-13 threads in through‑hole applications. The TiN (titanium nitride) coating reduces friction and increases wear resistance, making it suitable for production environments. The spiral point (gun) geometry projects chips forward through the hole, eliminating chip packing and allowing continuous high‑speed tapping – ideal for CNC machining centers and lathes.
The UNC 1/2-13 tap features a total length of 90mm (3.5") and a working length of 35mm (1.27"), with a 2B tolerance class for standard American internal threads. Its 3‑flute design offers a good balance of core strength and chip clearance. Do not use for blind holes as chips are forced forward; use a spiral flute tap instead. Common applications include American standard fasteners, automotive parts, and general machinery.
Custom coatings (TiAlN, CrN) and special tolerances are available for OEM orders. Upgrade your through‑hole tapping for UNC threads with this reliable, high‑productivity spiral point tap.
Spiral flute taps are ideal for blind holes (chip evacuation upward), while spiral point taps are best for through holes.Read full guide →
Metric: M3, M4, M5, M6, M8, M10, M12, M14, M16, M20, M24, M30. Also available in UNC, UNF, and NPTF threads. Custom lengths and shank configurations. View more size chart →
Available coatings: TiN (gold, general purpose), TiAlN (violet, high heat), CrN (silver, low friction), AlCrN (dark gray, hard materials). View full coating guide →
