8mm Machine Thread Tap MF8x0.75mm HSS-Co Form C Right-Hand 40° Flank Chamfer 6H Shank 6mm - TECWERK

Benefit from the combination of HSS‑Co construction and DIN 374C Form C geometry for reliable blind‑hole M8×0.75 threads; the compact 6 mm shank enables installation in standard machine holders. Order the tap directly via Metav Werkzeuge or ask our consultants if needed.

TECWERK machine tap DIN 374C M8×0.75, HSS‑Co, 6H tolerance

The TECWERK machine tap DIN 374C M8×0.75 is a precision metric fine‑thread tap engineered for blind‑hole threading in steels, temper cast iron and long‑chipping non‑ferrous metals under production conditions.

• Cobalt HSS for high wear resistance
• DIN 374C Form C chamfer geometry
• For blind‑hole metric fine threads
• 6 mm shank, 40° right‑hand spiral

Reliable fine threads for blind‑hole production

The DIN 374C geometry guarantees a short, controlled chamfer that supports secure thread start and consistent pitch control when producing metric fine threads such as M8×0.75. The design is optimised for blind‑hole applications, reducing the risk of thread bottom damage while maintaining thread accuracy. The built‑in 6H tolerance ensures an industry‑standard fit class for reliable assemblies, making the tap suitable where repeatable dimensional conformity is required in serial production.

Long service life through cobalt high‑speed steel

Manufactured from HSS‑Co, this tapping tool delivers enhanced heat resistance and edge stability compared with standard high‑speed steels. The cobalt alloy composition supports longer cutting life at elevated cutting speeds and under tougher material loads, especially in medium‑strength steels (up to approximately 1000 N/mm²). The result is fewer tool changes and more predictable tool‑life planning, which contributes to improved process economy and reduced downtime in workshop or production environments.

Geometry that improves chip control and reduces torque

A 40° right‑hand helix combined with relieved flanks (flank back‑off) improves chip formation and evacuation for long‑chipping materials, lowering torque peaks during tapping. The spiral angle and flank treatment help prevent chip re‑cutting in blind holes, reducing the likelihood of tap breakage and workpiece damage. These geometric optimisations translate into smoother machine operation, more consistent cycle times and better surface quality of the internal thread.

Practical integration for machine tapping operations

With a 6 mm shank the tool is compact and compatible with many machine tap holders and collet systems used in production. The specification explicitly supports blind‑hole threading in steels, temper cast iron and non‑ferrous metals that produce long chips, so process planners can match tool selection to material characteristics. The short Form C chamfer reduces axial run‑out sensitivity and helps maintain thread concentricity when used in machine spindles under repeatable clamping conditions.

Choose the TECWERK HSS‑Co machine tap for dependable blind‑hole fine‑thread production and contact Metav Werkzeuge for application advice or order support at info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 2000867481NW
• Description: TECWERK machine tap DIN 374C M8×0.75 HSS‑Co 6H
• Packaging unit: 1

Core data

• Thread: M8 x 0.75 mm
• Shank diameter: 6 mm
• Spiral angle: 40°
• Tensile strength suitability: up to approx. 1000 N/mm²
• Tolerance field: 6H

Special features

• Material: HSS‑Co
• Form: DIN 374C (Form C)
• Metric fine thread (ISO fine thread, DIN 13)
• Right‑hand helix, relieved flanks
• For blind‑hole threads
• Suitable for temper cast iron and long‑chipping non‑ferrous metals

FAQ

Which materials can be machined with this tap?
The TECWERK machine tap is intended for use in steels up to approximately 1000 N/mm², temper cast iron and long‑chipping non‑ferrous metals, as stated in the product specification.

Is this tap suitable for blind‑hole threading?
Yes, the tool is designed specifically for blind‑hole threads; the DIN 374C Form C chamfer supports secure entry and reduces the risk of bottoming out the thread.

What does the 6H tolerance mean for assembly?
A 6H tolerance indicates a standard internal thread class for metric fine threads, providing a reliable fit and interchangeability in typical mechanical assemblies when using matching external threads.

What is the shank diameter and how does that affect machine mounting?
The shank diameter is 6 mm, which permits use in many common machine tap holders and collet systems suitable for production tapping operations.

Does the spiral angle help with chip evacuation?
Yes, the 40° helix combined with relieved flanks improves chip formation and evacuation, particularly beneficial when machining long‑chipping materials in blind holes.

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