8mm Machine Thread Tap DIN 374B MF8x0.75 HSS-Co Form B Straight Flute 6H Shaved Flanks - TECWERK

Take advantage of the combination of high-performance HSS‑Co material, a Form B straight‑flute geometry and a compact 6 mm shank for consistent thread quality in series production. Order this machine tap directly via Metav Werkzeuge or consult the specialists for matching tool holders and thread‑forming strategies.

Machine tap DIN 374B MF 8×0.75 mm HSS‑Co 6H (TECWERK) — Form B, straight flute, 6 mm shank

A Machine tap DIN 374B MF 8×0.75 mm HSS‑Co 6H (TECWERK) designed for machining precise metric fine threads in through‑holes and medium‑strength steels

• HSS‑Co high‑speed cobalt steel
• DIN 374B, Form B straight flute design
• For steels up to ≈1000 N/mm² tensile strength
• 6 mm shank diameter for machine tools

Reliable fine‑thread production with consistent tolerances

The HSS‑Co composition provides elevated red‑hardness and wear resistance, making this tap suitable for continuous machine tapping. The metric fine thread geometry based on DIN 13 and the 6H tolerance ensure repeatable fit and functional clearance for assemblies where precise engagement matters. In automated or semi‑automated production, the combination of heat‑resistant material and ground geometry reduces regrind frequency, supporting predictable cycle times and lower tool‑change overheads.

Geometry engineered for chip control and surface quality

The Form B specification with a straight flute and relieved flanks produces predictable chip formation in through‑hole applications and is supplied with a cutting chamfer for through threads to ease chip evacuation. The flank relief improves thread flank finish and reduces insertion torque, which benefits downstream assembly operations. Operators and process planners gain a technical advantage from fewer rejects and improved thread surface integrity when machining long‑chipping non‑ferrous metals and temperate cast iron.

Suitable workpiece materials and performance envelope

Constructed for use in steels up to approx. 1000 N/mm² tensile strength, the tool is also suitable for temper cast iron and long‑chipping non‑ferrous metals. The HSS‑Co grade maintains hardness under elevated cutting temperatures, while the ground geometry minimises the risk of built‑up edge in ductile materials. For applications requiring sustained throughput, the material choice and form provide a cost‑effective balance between tool life and cutting performance.

Practical considerations for integration and handling

The tap features a 6 mm shank, compatible with common collet chucks and machine tap holders, supporting stable engagement and accurate axial run‑out. The straight‑flute design simplifies chip removal in through‑hole tapping without resorting to coolant‑intensive strategies. When used in standard tapping spindles or CNC tapping cycles, the tool supports reliable thread generation and predictable maintenance intervals, aiding planners in maintaining uptime and quality standards.

Contact Metav Werkzeuge for stock availability and specialist advice on clamping solutions and compatible holders for this TECWERK machine tap — eMail: info@metav-werkzeuge.com | Tel: +49 2822 7131930

Technical Data

• Article number: 2000867466NW
• Description: Maschinengewindebohrer DIN 374B MF8x0,75mm HSS‑Co 6H TECWERK
• Packaging unit: 1
• Manufacturer: TECWERK

Facts

• Thread size: MF 8×0.75 mm
• Shank diameter: 6 mm
• Material strength range: up to approx. 1000 N/mm²
• Tolerance: 6H

Special features

• HSS‑Co high‑speed cobalt steel
• Form B, straight‑fluted
• Flanks relieved (hinterschliffen)
• With cutting chamfer for through threads (Schälanschnitt)
• Suitable for steels, temper cast iron, long‑chipping non‑ferrous metals

FAQ

What thread standard does this tap follow?
The tap adheres to the metric fine‑thread standard DIN 13; the Machine tap DIN 374B MF 8×0.75 mm HSS‑Co 6H (TECWERK) is manufactured to the corresponding pitch and form tolerances.

Which holder types are compatible with the 6 mm shank?
Collet chucks and standard machine tap holders that accept a 6 mm shank are suitable; using a rigid collet increases accuracy for the TECWERK machine tap.

Can this tap be used for blind holes?
Although specified with a cutting chamfer for through‑holes, the ground geometry and HSS‑Co material allow use in blind holes with appropriate pecking and chip clearance strategies.

What materials are recommended for this tool?
Recommended workpiece materials include steels up to approx. 1000 N/mm², temper cast iron and long‑chipping non‑ferrous metals; the tool is optimised for these applications.

How does the Form B straight flute benefit production?
The Form B straight‑flute layout promotes predictable chip formation and straightforward evacuation in through‑hole tapping, improving thread finish and reducing cycle variation.

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