90mm Machine Tap Bit HSS-E M8x6.80mm Pitch 1.25mm Form B ISO2 (6H), 1/4" Hex Shank - VÖLKEL GmbH

Combining HSS‑Co cutting grade with a secure 6.3 mm (1/4") HexDrive shank and ISO2 (6H) tolerance, this machine tap bit ensures repeatable M8 threads for through‑thread applications; order the item directly via Metav Werkzeuge or consult the technical team for integration into production.

Machine Tap Bit HSSE M8 x 6.80 mm, 1.25 mm pitch — HSS‑Co, 1/4" HexDrive (VÖLKEL)

A Machine Tap Bit HSSE M8 x 6.80 mm, 1.25 mm pitch engineered for efficient through‑thread tapping in unalloyed and low‑alloy steels up to 900 N/mm²

• HSS‑Co cutting material for extended life
• 1/4" hex shank for secure machine mounting
• DIN 371 Form B for through‑thread applications
• ISO2 (6H) tolerance for metric ISO threads

Consistent metric threads with high cutting performance

The tap bit is manufactured from HSSE (HSS‑Co), a high‑speed steel alloyed with cobalt to retain hardness at elevated temperatures and extend tool life under continuous machining. With a nominal M8 thread form and ISO2 (6H) tolerance, the component provides a precision fit suitable for assembly and mass production. Conformance to WN (DIN 371) ensures compatibility with common metric thread standards, while the 90 mm overall length gives sufficient engagement for stable cutting without excessive overhang. These technical choices translate into predictable part tolerances and reduced rework in series production.

Secure drive and machine‑friendly design for fast set‑ups

Equipped with a HexDrive system and a 6.3 mm (1/4") hex shank, the bit mounts reliably in powered holders and quick‑change adapters, minimising slippage and downtime during tool changes. The Form B design with a specialised chamfer is optimised for through‑thread operations, evacuating chips effectively to maintain cutting stability. The robust drive interface paired with the chip‑directing geometry results in shorter set‑up times and steadier cycle performance on automatic tapping heads and CNC spindle drives.

Material range, handling and workshop advantages

Designed for the general machining of unalloyed and low‑alloy steels up to 900 N/mm², the tap bit is suited for maintenance shops and production lines that require durable threading solutions. The HSSE composition improves resistance to abrasive wear and allows higher cutting speeds compared with standard HSS, reducing cycle time per hole when conditions permit. The built‑in chamfer for through threads supports clean starts and less thread distortion, so parts leave the process ready for assembly. For less technical stakeholders, HSSE simply means greater endurance and fewer tool changes over a production run.

For precision M8 tapping with HSS‑Co endurance, contact Metav Werkzeuge for availability and application advice at info@metav-werkzeuge.com or +49 2822 7131930 — Metav’s consultants will evaluate compatibility with existing production systems and delivery schedules

Technical Data

• Article number: 4000868076NW
• Description: Maschinengewindebohrer-Bit HSSE 8 M8x6,80mm Steig.1,25mm VÖLKEL
• Packaging unit: 1

Core figures

• Length: 90 mm
• Shank: 6.3 mm (1/4")
• Thread size: M8 × 1.25 mm
• Tolerance: ISO2 (6H)

Special features

• Cutting material: HSSE (HSS‑Co)
• Design: Form B; WN (DIN 371)
• HexDrive system with 6.3 mm hex shank
• For through‑thread applications; with cutting chamfer
• Suitable for unalloyed and low‑alloy steels up to 900 N/mm²

FAQ

What materials is this tap bit suitable for? The Machine Tap Bit HSSE M8 x 6.80 mm is intended for unalloyed and low‑alloy steels and is rated for use up to approximately 900 N/mm², offering reliable performance in typical workshop and industrial applications.

What does HSSE mean and why is it used here? HSSE denotes high‑speed steel with cobalt; the cobalt content increases red hardness and wear resistance, so the VÖLKEL tap bit maintains cutting performance at higher temperatures and delivers longer tool life than standard HSS.

Is the shank compatible with standard tool holders? Yes, the included 6.3 mm (1/4") hex shank and HexDrive system are compatible with common machine holders and quick‑change chucks, providing a secure connection for automated tapping heads and hand‑held drivers.

Does the tap conform to recognised thread standards? The tool is produced to WN (DIN 371) specifications and achieves a metric thread tolerance of ISO2 (6H), ensuring interchangeability with standard metric components.

Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com