12mm Metric Fine Thread Machine Tap MF12x1 HSS-Co Form C 40° Helix Shank Ø9mm - TECWERK

Take advantage of a combination of precise metric fine threading and robust HSS‑Co cutting performance to reduce rework and ensure consistent assembly quality; order the tap conveniently via Metav Werkzeuge or consult our specialists for application‑specific advice.

TECWERK Machine tap DIN 374C MF12×1 HSS‑Co, 6H

The TECWERK Machine tap MF12×1 HSS‑Co is a Form C metric fine‑thread tool engineered for blind‑hole tapping in a wide range of steels and long‑chipping non‑ferrous metals

• HSS‑Co for high wear resistance
• Form C with 40° right‑hand helix
• For blind holes and MF fine threads
• 6H tolerance for precise thread fit

Accurate fine threads for reliable assemblies

The MF12×1 metric fine thread, produced to DIN 13 with a 6H tolerance, gives a predictable thread fit that reduces the need for rework and minimises assembly variation. Tight tolerances mean mating parts achieve consistent preload and alignment, which is especially valuable in precision mechanical and instrument assemblies. The standardised metric specification also supports interchangeability across suppliers and fixtures, simplifying inventory and procurement decisions.

Durable cutting performance under demanding conditions

Made from HSS‑Co, the tool combines high base hardness with improved red hardness from cobalt alloying, maintaining cutting edge integrity at elevated temperatures. This composition enables efficient machining in steels up to 1000 N/mm², as well as in temper cast iron and long‑chipping non‑ferrous materials. The result is extended tool life and fewer tool changes, delivering measurable savings in machine downtime and consumable turnover.

Optimised geometry for blind‑hole tapping and chip control

The Form C geometry with a 40° helix and relieved flanks is tailored for blind‑hole applications: the helix angle promotes smooth chip formation and evacuation, while the flank relief reduces the risk of binding at the thread root. These features lower the likelihood of tap breakage at depth and improve cycle reliability when working to a blind‑hole bottom. Where coolant and controlled feed are available, productivity and surface finish benefits are most evident.

Stable clamping and machine compatibility for consistent results

A 9 mm shank provides secure engagement in standard collets and holders, ensuring reliable torque transmission and concentricity in automated or manual tapping setups. Conformance to DIN 374C supports compatibility with common tapping fixtures and machining centres, simplifying integration into existing production lines. The compact tooling form is suitable for routine workshop use as well as series production, balancing stability with accessibility in confined bores.

For tailored application advice on TECWERK HSS‑Co machine taps or to arrange supply via Metav Werkzeuge from Emmerich, please contact our team at info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 2000867535NW
• Product: Machine tap DIN 374C MF12×1 HSS‑Co TECWERK
• Packaging unit: 1

Core specifications

• Thread size: MF12×1
• Tolerance: 6H
• Shank diameter: 9 mm
• Helix angle: 40°
• Suitable tensile strength: up to ≈1000 N/mm²

Materials & features

• Material: HSS‑Co
• Form: C, right‑hand helix
• Flanks: relieved / honed
• Application: blind holes
• Standard: DIN 374C / DIN 13

FAQ

Which materials is the TECWERK Machine tap MF12×1 suitable for?
The TECWERK machine tap MF12×1 (HSS‑Co) is suitable for steels up to approximately 1000 N/mm², temper cast iron and long‑chipping non‑ferrous metals, benefiting from the cobalt alloy’s improved high‑temperature hardness.

Is this tap designed for blind‑hole use?
Yes, the Form C geometry and 40° right‑hand helix make the tap optimised for blind holes, encouraging controlled chip removal and reducing the risk of tap breakage at depth.

What tolerance class and thread standard does this tap produce?
Threads are produced to DIN 13 as MF12×1 with a 6H tolerance class, offering a standardised fine‑thread fit suitable for precision assemblies.

What clamping size is required for the tool?
The tool has a 9 mm shank, which fits common collets and holders used in drilling and tapping spindles for secure clamping and accurate torque transmission.

What does HSS‑Co mean and why is it beneficial here?
HSS‑Co denotes cobalt‑alloyed high‑speed steel; the cobalt content increases red hardness and wear resistance, extending tool life under higher cutting temperatures and abrasive conditions common when machining tougher steels.

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