M8x1.25mm Round Die Form B HSS-E 6g for Tough Alloys, DIN 13 - TECWERK

Take advantage of the combination of HSS‑E cutting performance, a 6g tolerance for precise external threads and a closed Form B design for consistent chip control; order directly via Metav Werkzeuge or consult the team for application advice

TECWERK round die Form B M8×1.25 mm HSS‑E, 6g tolerance

The TECWERK round die Form B M8×1.25 mm HSS‑E 6g is a robust metric ISO thread cutting tool for external threads, developed for demanding and alloyed steels

• HSS‑Co grade (HSS‑E) for high heat resistance
• Metric ISO thread M8×1.25 mm, DIN 13
• Tolerance field 6g for precise external threads
• Closed, pre‑slotted Form B; works to 1200 N/mm²

Consistent thread accuracy for production use

The closed, pre‑slotted Form B geometry ensures stable seating in a die stock and predictable chip formation, which contributes to uniform external threads across batches. The specified 6g tolerance corresponds to a tight tolerance field for external threads according to metric ISO practice; this reduces the need for post‑processing and minimises rejects in serial work. Where repeatability is essential, the combination of form and tolerance supports efficient quality control and reliable assembly behaviour.

Material performance and thermal stability

Made from HSS‑E (high‑speed steel with cobalt), the cutting material retains hardness at elevated temperatures and increases resistance to abrasive wear compared with standard HSS. This composition is indicated for machining stainless, heat‑ and acid‑resistant steels and special alloys, and is specified for steels up to 1200 N/mm² tensile strength. The cobalt alloying improves hot hardness and toughness, so tool life is extended under challenging cutting conditions and the rate of tool changeovers can be reduced.

Ease of use and secure clamping in the die stock

The die’s compact geometry and 9 mm height allow straightforward insertion into standard die holders while the closed, pre‑slotted design supports controlled chip evacuation and reduced risk of tool walk. The tool is compatible with metric ISO thread practice (per DIN EN 22568 and DIN 13), which simplifies tool selection and integration into existing tool kits. For manual or semi‑automatic rethreading tasks, the robust form reduces the likelihood of chatter and produces a clean thread flank finish suitable for assembly.

Application scope and maintenance guidance

This die is intended for hard‑to‑machine materials, including stainless steels, heat‑resistant and acid‑resistant grades as well as special alloys; such applications benefit from the HSS‑Co composition and the controlled cutting geometry. Routine inspection of flank wear and immediate cleaning of chips after use prolong service life; when wear becomes evident, replacement maintains dimensional accuracy without complex regrinding procedures. The tool’s standard compliance and defined tolerance class support traceable quality in production environments, making it a practical choice for workshops and industrial suppliers seeking dependable thread cutting results.

For tailored selection advice or to reserve the TECWERK M8×1.25 mm round die with 6g tolerance, contact Metav Werkzeuge in Emmerich by e‑mail at info@metav-werkzeuge.com or by phone on +49 2822 7131930

Technical Data

• Article number: 2000867844NW
• Manufacturer: TECWERK
• Item label: Round die Form B M8×1.25 mm HSS‑E 6g

Facts

• Height: 9 mm
• Thread: M8×1.25 mm
• Tolerance field: 6g
• Strength capability: up to 1200 N/mm²
• Packaging unit: 1

Special features

• Material: HSS‑E (HSS‑Co)
• Standard: DIN EN 22568
• Form: B — closed, pre‑slotted
• Metric ISO thread per DIN 13
• Type: VA
• Application: hard‑to‑machine materials; stainless, heat‑ and acid‑resistant steels; special alloys

FAQ

What materials are suitable for this round die?
The TECWERK round die Form B M8×1.25 mm HSS‑E 6g is suitable for stainless steels, heat‑resistant and acid‑resistant steels, special alloys and other hard‑to‑machine materials up to approximately 1200 N/mm²

What does the 6g tolerance mean for external threads?
A 6g tolerance indicates a standard external thread tolerance band for metric ISO threads; the TECWERK die produces threads within this field, ensuring consistent fit and interchangeability with corresponding internal threads

Why is HSS‑E specified for this die?
HSS‑E (HSS‑Co) offers improved hot hardness and wear resistance compared to standard HSS; in the TECWERK die this material choice enhances durability and cutting stability when machining tough alloys

How does the closed, pre‑slotted Form B affect performance?
The closed, pre‑slotted Form B design gives better axial stability and more controlled chip formation, which reduces the risk of tool bounce and promotes consistent thread geometry during use

Which standards apply to the thread form and manufacture?
The die is manufactured in line with DIN EN 22568 and produces metric ISO threads per DIN 13; SKU: 2000867844NW

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