Product Specifications:
This large-diameter HSSE spiral flute tap is manufactured to DIN376 15D standard, featuring a TiN coating for reduced friction and increased wear resistance. The 4‑flute design provides balanced chip splitting and reduced cutting load per flute, essential for M27 threads which require high torsional strength. The 15° spiral angle ensures efficient chip evacuation in deep blind holes, while the extended overall length of 135mm and working length of 45mm make it suitable for deep-hole threading in large components.
The M27x1.5 tap is specifically designed for heavy-duty applications such as large hydraulic cylinders, wind turbine hubs, heavy machinery frames, shipbuilding components, and large industrial gearboxes. The TiN coating allows for higher cutting speeds and extends tool life by up to 50% compared to uncoated HSSE taps, particularly in abrasive materials like ductile cast iron, alloy steel (4140, 4340), and stainless steel (304, 316).
Custom options include alternative coatings (TiAlN, AlCrN), left‑hand flutes, reduced shank diameters, and special thread tolerances (6HX, 4H). For high-volume production of large threads, this DIN376 tap delivers consistent performance and excellent cost‑per‑hole value. OEM orders are welcome.
Spiral flute taps are ideal for blind holes (chip evacuation upward), while spiral point taps are best for through holes.Read full guide →
Available coatings: TiN (gold, general purpose), TiAlN (violet, high heat), CrN (silver, low friction), AlCrN (dark gray, hard materials). View full coating 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 →
