8mm Thread Tap M8x1.25 HSS-Co Form B Straight Flute ISO2 (6H), Shank Ø 8mm - TECWERK

Efficient production threads with HSS‑Co cutting edges, precise ISO metric tolerance and a secure 8 mm shank ensure reliable machining of long‑chip, soft materials; order the Machine Tap DIN 371B AL M8×1.25 HSS‑Co 6H (TECWERK) via Metav Werkzeuge or consult our specialists for application guidance.

Machine Tap DIN 371B AL M8×1.25 HSS‑Co 6H (TECWERK) — Straight‑flute metric through‑thread tap

The Machine Tap DIN 371B AL M8×1.25 HSS‑Co 6H (TECWERK) is a production‑grade, straight‑flute metric tap designed for efficient cutting of long‑chip, soft materials in machining centres and automatic tapping spindles.

• HSS‑Co grade for high wear resistance
• Straight flute for long‑chip workpieces
• ISO metric M8×1.25 with 6H tolerance
• 8 mm shank for secure toolholding

Reliable performance for high‑productivity threading

Manufactured from HSS‑Co (cobalt high‑speed steel), this tap provides elevated resistance to heat and wear, which extends service intervals under continuous operation. The straight‑flute geometry is tailored for materials that produce long chips, reducing the risk of chip jamming in through holes and maintaining stable cutting forces. Compliance with DIN 13 and the 6H tolerance ensures that threads meet recognised quality standards for interchangeability and fit, supporting consistent assembly processes and fewer rejects on the shop floor.

Consistent thread quality and reduced rework

The peel cut chamfer and ground flanks produce clean thread starts and smooth flank surfaces, improving engagement with mating fasteners and reducing the need for secondary finishing operations. The tool is specified as Form B / Type AL, which denotes its design for machine tapping and compatibility with automatic tapping heads. For production environments where repeatability matters, this geometry offers predictable chip formation and reliable dimensional results across batches.

Simple integration into existing tool workflows

A nominal shank diameter of 8 mm allows direct mounting in common collets and tap holders, simplifying tool changes and reducing setup time. The metric M8×1.25 thread form is widely used in mechanical assemblies, and the ISO2 tolerance class (6H) gives a standardised internal thread fit that is compatible with typical mating bolts and components. The combination of material, geometry and standard compliance makes the item well suited to CNC centres, tapping heads and dedicated tapping stations.

Practical considerations and material suitability

Designed principally for long‑chip, soft workpieces, this tap performs reliably in alloys and softer steels where continuous chips can otherwise impede productivity. The HSS‑Co composition supports higher cutting speeds than plain HSS in demanding applications, while the straight‑flute design facilitates chip evacuation in through‑hole tapping. Operators aiming for predictable cycle times and reduced tool breakage will benefit from the tap’s balanced cutting characteristics and robust shank design.

For reliable production threading with proven wear performance, contact Metav Werkzeuge to request the TECWERK M8 tap or to obtain tailored machining recommendations via info@metav-werkzeuge.com or +49 2822 7131930

Technical Data

• Article number: 2000867228NW
• Product name: Maschinengewindebohrer DIN 371B AL M8x1,25mm HSS‑Co 6H TECWERK
• Manufacturer: TECWERK
• Packaging unit: 1

Key figures

• Nominal thread: M8×1.25
• Shank diameter: 8 mm
• Tolerance class: ISO2 (6H)
• Standard: DIN 13, Sheet 1

Special features

• Material: HSS‑Co (cobalt high‑speed steel)
• Design: Form B, Type AL
• Flute: straight‑fluted
• Cutting edge: flanks ground (relieved)
• Chamfer: peel cut for through threads
• Application: for long‑chip, soft workpieces

FAQ

Which thread standard and tolerance does this tap follow?
The Machine Tap DIN 371B AL M8×1.25 HSS‑Co 6H (TECWERK) conforms to DIN 13 sheet 1 and provides an ISO2 tolerance class (6H) for standard metric internal threads.

What materials is this tap suited for?
This tap is designed for long‑chip, soft materials; the HSS‑Co grade and straight flutes are particularly effective in aluminium, non‑ferrous alloys and similar workpieces that produce continuous chips.

How is the tool held in the spindle or tap holder?
The tap features an 8 mm shank diameter, permitting direct clamping in common collets and tap holders for secure toolholding and straightforward integration into existing tooling systems.

What advantages does the HSS‑Co composition bring?
HSS‑Co increases heat and wear resistance compared with plain HSS, enabling higher cutting performance and longer tool life under continuous production loads with the TECWERK tap.

Is this tap suitable for through‑hole tapping?
Yes; the tool includes a peel‑cut chamfer specifically for through‑thread applications, facilitating chip evacuation and reliable thread starts

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