8mm Metric Fine Thread Die MF8x1mm HSS Form B 6g For Steels Up To 800 N/mm² - TECWERK

Precision and durability meet reliable thread quality: the HSS construction combined with the MF8×1 mm metric fine pitch and 6g tolerance delivers consistent, serviceable threads for steels up to 800 N/mm²; efficient chip control is achieved by the closed, pre-slit Form B design. Order the TECWERK die directly via Metav Werkzeuge or consult Metav’s specialists for application advice.

TECWERK Threading Die MF8×1 mm (Form B · HSS · 6g)

The TECWERK Threading Die MF8×1 mm is a Form B high-speed steel die designed for cutting metric ISO fine threads in components made from medium-strength steels, optimised for workshop and industrial threading tasks.

• High-speed steel (HSS) construction
• Metric fine thread MF8×1 mm ISO fine thread
• Tolerance field 6g for accurate fits
• For steels up to 800 N/mm² tensile strength
• Closed, pre-slit Form B design

Consistent precision for critical assemblies

The die is manufactured to DIN EN 22568 standards and is specified for a MF8×1 mm metric fine pitch with tolerance 6g, which supports repeatable thread geometry and predictable fit behaviour in mating parts. The high-speed steel body provides dimensional stability under cutting loads and heat, reducing the risk of thread distortion. For production environments where interchangeability and consistent torque settings matter, this tooling choice minimises rework and rejects by ensuring the thread form conforms to established ISO fine-thread tolerances.

Robust performance across common steel grades

Designed for use in steels up to 800 N/mm² tensile strength, the die handles a broad range of typical workshop materials without rapid wear. The HSS cutting edges retain hardness at elevated temperatures and are therefore suitable for moderate duty threading where carbide would be excessive. The combination of Form B geometry and a closed, pre-slit layout improves chip control and contributes to even load distribution across the cutting flutes. This results in smoother cuts and reduced risk of thread damage when used with appropriate die stocks or holders.

Practical handling and long-term reliability

With a nominal height of 9 mm and a compact design, the die fits standard die holders and simplifies replacement cycles in busy shops. The pre-slit construction eases thread entry and improves chip evacuation compared with fully closed dies while maintaining the stability of a closed form for finish quality. Routine light sharpening and correct lubrication extend service life; the material choice and manufacturing standard make the component a practical option for workshops seeking a balance of durability and consistent finish without over-specification.

Contact Metav Werkzeuge for tailored application support or to secure immediate supply of the TECWERK threading die from our Emmerich facility.

Technical data

• Article number: 2000867762NW
• Manufacturer: TECWERK
• Label: Schneideisen Form B metrisch fein MF8x1mm HSS 6g TECWERK

Facts

• Thread: MF8x1 mm
• Standard: DIN EN 22568
• Tolerance: 6g
• Material: HSS
• Height: 9 mm
• Application: steels up to 800 N/mm²

Special features

• Form: B, closed, pre-slit
• Metric ISO fine thread DIN 13 MF
• For workshop and industrial threading
• Packaging unit: 1

FAQ

What material is the die made from and what does that mean for service life?
The die is manufactured from HSS; HSS provides good wear resistance and heat tolerance, so the TECWERK die maintains cutting performance over extended use under typical workshop conditions.

Which thread standard and tolerance does this die follow?
This die conforms to DIN EN 22568 and produces a metric ISO fine thread MF8×1 mm with a tolerance field of 6g, ensuring compatibility with standardised mating parts.

Can the die be used on hardened steels?
The die is specified for steels up to approximately 800 N/mm² tensile strength; it is not intended for high-hardened steels beyond this range without specialist treatment or alternative tooling.

How does the Form B, closed pre-slit design affect performance?
The closed, pre-slit Form B shape offers a stable cutting form with improved chip control compared to fully closed types, leading to cleaner thread profiles and reduced jamming.

What holder is required for this die and how is it installed?
Standard die holders suitable for metric dies accept this form; the compact 9 mm height and conventional form mean the TECWERK die fits common die stocks used in workshops.

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