4x0.5mm Machine Tap DIN 374C HSS-Co Form C Right-Hand 40° Undercut Flanks MF Thread 6H For Blind Holes Shaft Ø 2.8mm - TECWERK

Take advantage of the combination of high‑wear HSS‑Co construction, precise M4 x 0.5 metric fine threading and a 40° right‑hand spiral for reliable blind‑hole tapping; order directly via Metav Werkzeuge or request advice from our consultants.

TECWERK machine tap M4 x 0.5 (DIN 374C), HSS‑Co, 6H

The TECWERK machine tap M4 x 0.5 (DIN 374C) is a cobalt high‑speed‑steel machine tap designed for producing metric fine blind threads in steels up to approx. 1000 N/mm² and long‑chipping non‑ferrous materials.

• HSS‑Co for increased wear resistance
• Form C with 40° right‑hand spiral
• Flank relief for smooth chip evacuation
• For metric fine thread M4 x 0.5, tolerance 6H

Precise fine threads where tolerance matters

The TECWERK machine tap delivers consistent M4 x 0.5 metric fine threads to DIN 374C, with the 6H tolerance ensuring repeatable fit and minimal rework when assembling fine‑pitch components. Built from HSS‑Co, the tool offers increased edge stability and wear resistance compared with standard high‑speed steel, which translates into fewer tool changes and longer service intervals. For users machining temperate steels and long‑chipping non‑ferrous metals, the result is a predictable thread form and reduced scrap rates.

Optimised chip control for blind‑hole tapping

The tool’s Form C geometry combined with a 40° right‑hand spiral and flank relief promotes controlled chip formation and evacuation towards the shank, specifically tailored for blind holes. This configuration lowers the risk of chip jamming deep in the bore and improves surface finish in the thread root. The spiral angle encourages continuous chip transport, which reduces axial thrust and helps maintain dimensional accuracy during automated or high‑feed production cycles.

Machine compatibility and handling benefits

With a shank Ø 2.8 mm, the tap fits compact collets and tool holders used in machine tapping applications, enabling quick insertion and repeatable tool positioning. The combination of cobalt alloy and flank‑ground cutting edges supports stable cutting behaviour under interrupted cuts and higher temperatures, preserving thread quality in tougher workpiece materials. The compact design and robust geometry make the tool a practical choice for production runs where consistent performance and low downtime are priorities.

For professional machine tapping in demanding materials, contact Metav Werkzeuge for tailored advice or place an enquiry via info@metav-werkzeuge.com or call +49 2822 7131930 to discuss the TECWERK M4 x 0.5 machine tap and application fitment.

Technical data

• Article number: 2000867508NW
• Manufacturer: TECWERK
• Packaging unit: 1
• UID: 2000867508NW

Data

• Thread size: M4 x 0.5
• Tolerance field: 6H
• Shank diameter: 2.8 mm
• Spiral angle: 40°
• Maximum recommended workpiece tensile strength: approx. 1000 N/mm²

Special features

• Material: HSS‑Co (cobalt high‑speed steel)
• Form C geometry
• Right‑hand spiral for blind holes
• Flank relief (flank ground)
• Metric ISO fine thread, DIN 13
• Suited for blind‑hole tapping and long‑chipping non‑ferrous metals

FAQ

What materials is this machine tap suitable for?
The TECWERK machine tap M4 x 0.5 is suitable for steels up to approximately 1000 N/mm² and for long‑chipping non‑ferrous materials, as indicated in the product data.

Is the tap suitable for blind holes or through holes?
This tap is designed with a 40° right‑hand spiral and flank relief to optimise chip evacuation in blind holes, though it can also be used in some through‑hole applications where spiral chip removal is beneficial.

What does the 6H tolerance mean for thread responsibility?
The 6H tolerance denotes the standard internal thread tolerance for metric ISO fine threads; it ensures reliable mating with standard external threads and predictable assembly behaviour.

Which machine interface fits the tap shank?
The tool has a shank Ø 2.8 mm, making it compatible with compact collets and tool holders commonly used in machine tapping set‑ups; check the machine’s collet specification for exact fit.

Can this tap be used in automated production?
Yes, the combination of HSS‑Co construction, controlled chip evacuation and compact shank design makes this tap suitable for automated machine tapping where consistent cycle times and tool life are required.

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