8mm Machine Thread Tap DIN 374C Universal MF8x1mm HSS-Co Vaporised ISO2 (6H) Blind Hole - TECWERK

Take advantage of a durable HSS‑Co composition and a vapourised coating to achieve consistent metric fine threads in blind holes; the Form C universal geometry and flanks lapped finish reduce rework and improve assembly fit. Order the TECWERK tap directly via Metav Werkzeuge or contact our consultants for application advice.

TECWERK Universal Machine Tap MF8×1 mm (HSS‑Co, Form C, vapourised, 6H)

The TECWERK Universal Machine Tap MF8×1 mm is a Form C machine tap for producing metric fine ISO threads in blind holes across a range of engineering materials.

• HSS‑Co for high wear resistance
• Form C universal geometry
• Vapourised coating with green ring
• Designed for blind-hole metric fine threads

Consistent fine threads for precision assemblies

The tap complies with DIN 374C and cuts an MF8×1 mm metric fine thread to ISO2 (6H) tolerance, ensuring repeatable fit for mating parts in production environments. The tolerance class 6H offers a balance between manufacturing ease and assembly precision, giving reliable screw engagement without additional rework. Intended for blind-hole applications, the tool’s geometry and finish reliably produce accurate pitch and flank form, reducing scrap rates and downstream inspection effort.

Geometry and surface treatment that extend tool life

Manufactured from HSS‑Co (cobalt-alloyed high-speed steel), the tool resists softening at elevated temperatures and maintains edge stability during interrupted cuts. The vapourised coating reduces friction and improves wear performance, while the flanks lapped finish enhances thread surface quality and reduces the need for post-process finishing. A helix 40° with right-hand spiral facilitates chip formation and evacuation in blind holes, lowering the risk of chip packing and tap breakage. These features together support longer tool life and more predictable cycle times.

Reliable performance across common engineering materials

The universal Form C geometry is designed for versatile use in steel, stainless steels, nodular (spheroidal) cast iron and non‑ferrous metals, making the tap suitable for mixed production runs and maintenance shops. The combination of substrate and coating is optimised for moderate cutting conditions and frequent tool changes, allowing fewer tool variants to cover multiple tasks. With a shank Ø 6 mm, the tap integrates with standard collets and tapping holders, simplifying tool management and reducing set-up times.

Practical guidance for secure machining and quality results

For best results in blind‑hole tapping, use appropriate cutting fluid and controlled feed to avoid chip congestion; where necessary, employ peck tapping cycles to clear chips. The lapped flanks improve thread finish but do not eliminate the need for correct machine alignment and steady feed rates. The short shank diameter and universal design mean the tap is suitable for automated tapping heads and CNC setups when clamped correctly. For detailed application parameters or material-specific recommendations, Metav Werkzeuge can provide tailored guidance.

Contact Metav Werkzeuge for expert advice on applying TECWERK taps in production environments; email info@metav-werkzeuge.com or call +49 2822 7131930 to discuss suitability and ordering

Technical data

• Article number / SKU: 2000867921NW
• Description: Machine tap DIN 374C MF8×1 mm, HSS‑Co, Form C
• Manufacturer: TECWERK
• Packaging unit: 1

Facts

• Thread: MF8×1 mm
• Tolerance: ISO2 (6H)
• Shank diameter: Ø 6 mm
• Helix angle: 40° (right-hand)

Special features

• Material: HSS‑Co (cobalt high‑speed steel)
• Coating: vapourised (green ring)
• Geometry: Form C, universal
• Finish: flanks lapped
• Standard: DIN 13
• Application: blind‑hole threads
• Suitable for: steel, stainless steels, nodular cast iron, non‑ferrous metals

FAQ

What thread and tolerance does this tap produce?
The TECWERK Universal Machine Tap produces an MF8×1 mm metric fine thread to ISO2 (6H) tolerance, suitable for standard mechanical assemblies requiring consistent internal fit.

Is the tap suitable for stainless steel and cast iron?
Yes, the tap’s HSS‑Co substrate and design are suitable for stainless steels and nodular cast iron, with the vapourised coating helping to reduce friction and wear in these tougher materials.

Can this tap be used in automated tapping heads?
The tap’s shank Ø 6 mm and universal Form C geometry make it compatible with standard collets and automated tapping heads when proper clamping and alignment are observed.

What does the vapourised coating provide in daily use?
The vapourised coating on the TECWERK tap reduces surface friction, improves tool life and assists chip flow, which decreases the likelihood of tap wear and enhances thread surface quality.

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