M4x0.7mm HSS-Co Machine Tap C TiN Coated, ISO2 (6H) Blind Hole, 40° Helix - TECWERK

Take advantage of a wear‑resistant HSS‑Co substrate combined with a TiN coating and a 40° right‑hand spiral for reliable M4 ISO threads in blind holes — order and procurement support available via Metav Werkzeuge or consult the technical team for specification checks.

Machine tap DIN 371C M4×0.7 HSS‑Co TiN (6H) by TECWERK

The Machine tap DIN 371C M4×0.7 HSS‑Co TiN is a metric machine tap designed for producing precise ISO threads in blind holes, suited to machining medium‑to‑high strength steels.

• Cobalt HSS for high tensile materials
• TiN coating for extended tool life
• 40° right‑hand spiral for blind holes
• ISO2 (6H) tolerance for precise fits

Durable substrate and coating for tough production demands

The tap is manufactured from HSS‑Co (cobalt high‑speed steel), providing improved hot hardness and resistance to wear compared with standard high‑speed steels; this translates to longer service intervals and fewer tool changes in serial production. The TiN coating further reduces friction and enhances surface hardness, which benefits cycle times and repeatability when threading steels up to 1000 N/mm². For workshop managers and production engineers, this means a measurable improvement in process stability and less unplanned downtime.

Industrial accuracy and interchangeability for assembly lines

Compliance with DIN 13 (sheet 1) and the ISO2 (6H) tolerance class ensures that produced threads meet industrial interchangeability standards. The metric M4×0.7 thread form is executed with consistent flank geometry and dimensional conformity, which supports tight assembly tolerances and repeatable fits. The tolerance class 6H indicates a standard internal thread tolerance suitable for general engineering use; in practice this results in dependable mating with bolts and fasteners specified to the same standard, reducing rework and inspection effort on the shop floor.

Optimised flute geometry and handling for blind‑hole threading

The tool’s 40° right‑hand spiral and flank relief are configured to assist chip control in blind‑hole applications, guiding chips away from the cutting edge and reducing the risk of clogging. This spiral geometry, combined with the relieved flanks, also eases thread forming and extraction forces in confined holes. The tap’s shaft Ø 4.5 mm provides compatibility with common machine holders and collets, supporting straightforward integration into automatic tapping units. Together, these features lower cycle variations and contribute to a predictable tool life profile, which supports efficient inventory planning and operator workflows.

For procurement assistance, delivery from Emmerich and specific technical advice from Metav Werkzeuge, contact info@metav-werkzeuge.com or call +49 2822 7131930 — consultancy and order handling are available directly through Metav Werkzeuge

Technical Data

• Article number: 2000867312NW
• Product: Machine tap DIN 371C M4×0.7 HSS‑Co TiN 6H TECWERK
• Packaging unit: 1
• Brand: TECWERK

Core measurements

• Thread size: M4 × 0.7 mm
• Helix angle: 40° (right‑hand)
• Shaft diameter: 4.5 mm
• Material suitability: steels up to 1000 N/mm² tensile strength
• Tolerance: ISO2 (6H)
• Standard: DIN 13 Blatt 1

Special features

• HSS‑Co substrate (cobalt high‑speed steel)
• TiN‑coated surface
• Form C design
• Flank relief (hinterschliffen)
• Designed for blind‑hole threading
• Metric ISO thread profile

FAQ

Which materials can be machined with this tap?
The Machine tap DIN 371C M4×0.7 HSS‑Co TiN is specified for steels up to 1000 N/mm² tensile strength and performs best on medium‑to‑high strength steel grades.

Is this tap suitable for blind‑hole applications?
Yes, the tool is designed for blind‑hole threads; the 40° right‑hand spiral and relieved flanks support chip evacuation and reduce clogging in closed‑end holes.

What tolerance class does the tap produce?
Threads are produced to ISO2 (6H) tolerance in accordance with DIN 13 Blatt 1, providing standardised internal thread accuracy for reliable assembly fits.

How does the TiN coating affect performance?
The TiN coating lowers friction, increases surface hardness and extends tool life, resulting in more consistent cycle times and reduced wear in batch production.

Manufacturer/Responsible: NORDWEST Handel AG, Robert‑Schuman‑Straße 17, 44263 Dortmund