MF12x1mm Machine Tap DIN 374B HSS-Co Form B Straight Flute 6H Shallow Chamfer 9mm Shank - TECWERK

Take advantage of a robust combination of HSS‑Co material and Form B geometry for consistent ISO fine-thread quality. The tool’s straight-flute design and shaft Ø 9 mm ensure secure clamping and dependable chip control when producing MF12x1 mm threads; order directly via Metav Werkzeuge or request specialist advice from our consultants.

TECWERK machine tap MF12x1 mm (HSS‑Co, Form B)

A TECWERK machine tap designed for producing MF12x1 mm metric fine threads to DIN 13, suited to production and workshop applications where repeatable precision and efficient machining are required

• HSS‑Co construction for heat resistance and wear life
• Form B straight flute for machine tapping
• Tolerance class 6H for ISO fine-thread accuracy
• Shaft Ø 9 mm for reliable clamping

Consistent thread accuracy for assembly-ready parts

The HSS‑Co composition provides enhanced hardness at cutting temperatures, which directly benefits repeatability when forming fine threads. With the 6H tolerance the tap produces threads within the ISO fine-thread band, delivering a consistent fit for nuts and mating components. This translates into fewer rejected parts and reduced rework, supporting steady production flow. The designation DIN 13 confirms the thread form and pitch conformity required for many engineering assemblies.

Material range and machining behaviour explained

Designed to cut in steel up to 1000 N/mm², temper cast iron and long‑chip non‑ferrous metals, the tool balances toughness and edge stability. The straight flute geometry assists controlled chip formation and evacuation when used in appropriate materials, while the flanks relieved profile reduces friction along the thread flanks to improve surface finish. For less experienced operators, this means clearer expectations of chip form and improved hole quality without complex tool changes.

Machine compatibility and productivity advantages

Built as Form B, this machine tap is intended primarily for powered tapping heads and CNC cycles where rotation and axial feed are synchronised. The included chamfer for through threads facilitates smooth entry and reduces burr formation on exit, shortening cycle time for through-hole tapping operations. The shaft Ø 9 mm offers a secure interface with standard tap holders and collets, enhancing concentricity and minimising run-out during high‑speed cycles.

Practical handling and lifecycle considerations

The straight-flute geometry and cobalt alloy combine to permit repeated regrinding in many cases, extending tool life if local sharpening facilities are available. Routine inspection of the cutting lips and reliefs is recommended to maintain thread quality; attention to correct lubrication and machine feed settings will also prolong service life. Selecting a tap with these characteristics reduces stoppages and supports predictable maintenance intervals in industrial workshops.

Contact Metav Werkzeuge for delivery from Emmerich, tailored advice on integration into production, or further technical specifications by email at info@metav-werkzeuge.com or by phone on +49 2822 7131930

Technical data

• Article number: 2000867470NW
• Label: Maschinengewindebohrer MF12x1 mm HSS‑Co Form B TECWERK
• Manufacturer: TECWERK

Facts

• Thread: MF12x1 mm
• Tolerance: 6H
• Standard: DIN 13
• Shank Ø: 9 mm
• Packaging unit: 1
• Suitable tensile strength: up to approx. 1000 N/mm²

Special features

• Material: HSS‑Co
• Geometry: Form B, straight‑fluted
• Flank reliefs (flanks relieved)
• Chamfer for through threads (Schälanschnitt)
• Application: steels, temper cast iron, long‑chip non‑ferrous metals

FAQ

What materials can be machined with this tap?
The TECWERK machine tap MF12x1 mm is suitable for steel up to approx. 1000 N/mm², temper cast iron and long‑chip non‑ferrous metals as stated in the tool specification.

Is the tap intended for manual or machine use?
This Form B, straight‑flute tap is designed for machine tapping applications and is particularly suitable for powered tapping heads and CNC cycles.

What does the 6H tolerance mean for assemblies?
A 6H tolerance denotes an ISO standard internal thread tolerance that ensures a reliable fit with standard external threads, reducing the need for trial fittings.

How does the chamfer affect tapping through holes?
The chamfer for through threads provides a controlled thread start and helps prevent burrs on exit, improving thread quality and reducing secondary finishing.

What shank size is required for clamping?
The tap features a shaft Ø 9 mm, which matches common tap holders and collets for secure clamping in machine spindles.

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