M4x0.7mm Machine Tap DIN 371B HSS-Co 6H Straight Flutes Recessed Flanks, 4.5mm Shank - TECWERK

Take advantage of the combination of durable HSS‑Co construction and ISO2 (6H) thread tolerance for reliable, repeatable M4 threads and reduced rework in series production. Order via Metav Werkzeuge or contact the technical advisers for application support.

TECWERK machine tap DIN 371B – M4 x 0.7, HSS‑Co, 6H

The TECWERK machine tap DIN 371B M4 x 0.7 is a straight‑fluted metric thread tap designed for efficient through‑threading in medium‑strength steels and standard production set‑ups.

• HSS‑Co for high hot‑hardness
• DIN 371B Form B, straight fluted
• ISO2 (6H) tolerance for precise threads
• Shearing chamfer for through‑thread cutting

Consistent thread quality for series production

Manufactured from HSS‑Co, this tap maintains cutting hardness at elevated temperatures, which extends life under continuous operation. The compliance with DIN 371B and ISO2 (6H) tolerance ensures a predictable fit for mating parts, reducing inspection time and scrap rates. In practice, the combination of material and standardised tolerance yields consistent M4 x 0.7 threads suitable for batch runs where repeatability and interchangeability are priorities.

Built for through holes and demanding steels

The Form B straight flutes and the shearing chamfer are optimised for through‑hole tapping: chips evacuate axially, cutting forces remain controlled and the risk of chip jamming is lowered. The geometry also supports machining in steels up to approximately 900 N/mm², offering both cutting performance and surface quality. For operators unfamiliar with the term, a shearing chamfer produces a cleaner entry and reduces thread burrs when producing through threads.

Simple integration into machine workflows

A 4.5 mm shank provides compatibility with common machine holders and tapping attachments in production environments. The tool is intended for machine tapping rather than hand work; when paired with appropriate tapping holders and cutting fluid, the tap delivers stable results and reduced tool change frequency. Supplied as single units, the item suits both small workshop replenishment and targeted machine tool maintenance orders. Reliability of supply is supported via Metav Werkzeuge’s distribution and technical consultancy.

Secure production‑ready M4 threads with the TECWERK machine tap—contact Metav Werkzeuge for delivery and technical advice at info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 2000867244NW
• Manufacturer: TECWERK
• Designation: Machine tap DIN 371B M4 x 0.7 HSS‑Co 6H TECWERK

Facts

• Thread size: M4 x 0.7 mm
• Shank diameter: 4.5 mm
• Strength suitability: steels up to ca. 900 N/mm²
• Packaging unit: 1

Special features

• HSS‑Co material
• Form B, straight fluted
• Flank relief (flank surfaces relieved)
• Metric ISO thread; DIN 13 Blatt 1
• Tolerance field ISO2 (6H)
• Shearing chamfer for through threads

FAQ

Which materials can be tapped with this tool?
The TECWERK machine tap DIN 371B M4 x 0.7 is specified for machining steels up to approximately 900 N/mm²; the tap’s HSS‑Co composition supports performance in medium‑strength steels.

What accuracy does the tap provide?
Threads are produced to ISO2 (6H) tolerance as specified, delivering a standardised and accurate metric thread fit for series components.

Is this tap suitable for blind holes?
The tool features a shearing chamfer optimised for through threads; for blind‑hole applications a tap with a specialised chamfer or a bottoming tap is normally recommended.

What shank size is required for the holder?
The tap has a 4.5 mm shank diameter and is intended for machine collets and standard tapping holders compatible with this shank.

Which standards apply to the thread form?
Thread form and dimensions conform to metric ISO specifications and reference DIN 13 Blatt 1, consistent with the DIN 371B designation.

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