M8 x 6.80mm HSSE Machine Tap Bit Form C 15° RSP 90mm, ISO2 6H Hex Shank 6.3mm - VÖLKEL GmbH

The combination of durable HSSE cutting material and a secure HexDrive 6.3 mm (1/4") shank delivers consistent, accurate thread production with efficient tool changes; order the tap bit directly via Metav Werkzeuge or consult the Metav team for application advice.

Machine thread tap bit HSSE M8 x 6.80 mm, Pitch 1.25 mm — VÖLKEL

The Machine thread tap bit HSSE M8 x 6.80 mm, Pitch 1.25 mm is a compact, production-ready tap for creating metric ISO threads in blind holes, designed for general use in easily machinable materials up to 900 N/mm².

• HexDrive 6.3 mm (1/4") hex shank
• HSSE cutting material for long life
• Form C (15° RSP) thread geometry
• ISO2 tolerance (6H) for precision threads
• For blind-hole threads in materials up to 900 N/mm²

Consistent thread accuracy through geometry and material choice

The tap bit combines HSSE cutting material with a Form C (15° RSP) geometry to maintain cutting edge integrity and predictable chip formation. The high-speed steel with cobalt content improves wear resistance during serial tapping, which results in fewer tool changes and stable thread quality. The specified ISO2 (6H) tolerance indicates a tight fit class suitable for standard industrial assemblies, enabling reliable mating with bolts and screws produced to ISO specifications.

Secure drive and simple integration into production lines

A 6.3 mm (1/4") HexDrive shank provides positive torque transfer and fast tool changes in automated or semi-automated tap holders. The compact 90 mm overall length keeps overhang low for improved concentricity and reduced runout, supporting consistent M8 thread production even on smaller machining centres. Because the shank conforms to common quick-change systems, the bit integrates smoothly into existing setups, reducing downtime and simplifying tool inventory.

Practical operation and maintenance for workshop use

The tap conforms to the WN (DIN 371) standard and is optimised for blind-hole tapping, limiting thread protrusion and controlling chip behaviour in closed cavities. Regular inspection of the cutting lips and adherence to recommended lubrication practices extend service life and help retain dimensional accuracy. For small-batch production and maintenance workshops alike, the tool offers a balance of durability and predictable performance, minimising rework and supporting steady throughput.

Contact Metav Werkzeuge for tailored advice on workshop compatibility and to secure dependable supply direct from Emmerich: eMail info@metav-werkzeuge.com or call +49 2822 7131930 to discuss the VÖLKEL HSSE machine tap bit and suitable holders

Technical Data

• Article number: 4000868083NW
• Label: Maschinengewindebohrer-Bit HSSE 8 M8x6,80mm Steig.1,25mm
• Manufacturer: VÖLKEL GmbH
• Packaging unit: 1
• UID: 4000868083NW

Facts

• Thread size: M8 x 6.80 mm
• Pitch: 1.25 mm
• Shank diameter: 6.3 mm (1/4")
• Total length: 90 mm
• Material strength suitability: up to 900 N/mm²
• Tolerance class: ISO2 (6H)

Special features

• HexDrive 6.3 mm (1/4") hex shank
• HSSE cutting material (HSS-Co)
• Form C (15° RSP) thread geometry
• Metric ISO thread for blind holes (WN / DIN 371)
• For unalloyed and low-alloy steels

FAQ

Which materials can be machined with this tap bit?
The VÖLKEL machine thread tap bit HSSE M8 x 6.80 mm is specified for general use in easily machinable materials and is suitable for unalloyed and low-alloy steels up to 900 N/mm².

Is the HexDrive shank compatible with quick-change holders?
Yes, the 6.3 mm (1/4") HexDrive shank allows positive torque transfer and is compatible with common quick-change systems and tap holders used in production environments.

Can this tap bit be used for blind-hole threads?
The tool is designed for blind-hole tapping and features geometry optimised to control chip formation in closed cavities according to the WN (DIN 371) specification.

What does ISO2 (6H) tolerance mean for thread fit?
ISO2 (6H) denotes a standard medium-fit tolerance class that ensures consistent mating with bolts and fasteners manufactured to ISO specifications, offering a reliable engineering fit in assemblies.

How does the HSSE material affect service life?
HSSE (HSS with cobalt) increases heat and wear resistance compared with standard HSS, improving tool life under higher cutting temperatures and helping to maintain accurate thread form over longer production runs.

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