28mm MF Thread Cutting Tap DIN 374B HSS-Co 6H Straight Fluted Reduced Cutting Edge, 20mm Shank - TECWERK

Take advantage of the combination of HSS‑Co material and a Form B straight‑flute geometry with honed flanks for consistent thread quality and long tool life; order the tap directly via Metav Werkzeuge or request advice from our consultants.

TECWERK machine tap MF 28×1.5 mm (DIN 374B) – HSS‑Co, tolerance 6H

A TECWERK machine tap MF 28×1.5 mm engineered for cutting metric fine internal threads in steels up to approximately ~1000 N/mm², temper cast and long‑chipping non‑ferrous metals, suitable for machining centres and automated tapping units

• HSS‑Co for enhanced wear resistance
• Form B, straight flutes, honed flanks
• Metric MF 28×1.5 mm, tolerance 6H
• Lead cut for through‑hole threads
• Shank Ø20 mm for secure clamping

Reliable cutting performance for demanding materials

The tap is manufactured from HSS‑Co, a cobalt‑alloyed high‑speed steel that maintains hardness at elevated temperatures and extends tool life under intermittent cutting and higher feed rates. This material choice reduces wear when working in tougher steels and improves lifetime when machining long‑chipping non‑ferrous alloys. The HSS‑Co composition allows for reliable performance in serial production, lowering downtime and the need for frequent tool changes while supporting efficient cycle times on machine tools.

Thread accuracy that reduces rework and assembly issues

Designed to the DIN 13 specification and producing a metric MF 28×1.5 mm ISO fine thread with 6H tolerance, the tool delivers predictable dimensional results and repeatable fits. The honed flanks improve thread surface finish and contact quality, which helps to avoid galling and ensures consistent torque behaviour in assemblies. For quality‑sensitive applications, the reduced tolerance scatter leads to fewer rejects and less rework, contributing to a more economical production flow.

Geometry and handling optimised for machine use

The Form B design with straight flutes supports controlled chip formation in through‑hole tapping when combined with the lead cut for through‑hole threads; this promotes smooth chip evacuation and prevents clogging in longer production runs. A shank Ø20 mm provides a robust clamping interface for collets or toolholders, ensuring concentricity and minimising runout on automated tapping spindles. The combination of geometry and shank design aids process stability and simplifies integration into existing setups.

Application contexts and practical benefits

Suited to toolrooms, maintenance departments and industrial production lines, this tap is intended for both one‑off repairs and serial production where fine metric threads are required. It is appropriate for use in steels up to about ~1000 N/mm², temper cast materials and long‑chipping non‑ferrous metals, delivering a balance of durability and precision. The tap’s construction and finish help to conserve machine time and reduce tooling costs through extended service intervals and fewer rejects.

For precision threading in industrial environments opt for the TECWERK machine tap MF 28×1.5 mm — contact Metav Werkzeuge in Emmerich for tailored advice or to place an order at info@metav-werkzeuge.com or by phone on +49 2822 7131930

Technical Data

• Article number: 2000867279NW
• Manufacturer: TECWERK
• Packaging unit: 1

Facts

• Thread: MF 28×1.5 mm
• Shank Ø: 20 mm
• Tolerance: 6H
• Max material strength: ~1000 N/mm²

Special features

• HSS‑Co material
• Form B, straight flutes
• Flanks honed
• Lead cut for through‑hole threads
• DIN 13 compliant

FAQ

What materials can be machined with this tap?
The TECWERK machine tap MF 28×1.5 mm is suitable for steels up to approximately ~1000 N/mm², temper cast materials and long‑chipping non‑ferrous metals.

Is the tap suitable for automated tapping units?
Yes, the shank Ø20 mm and straight‑flute Form B geometry make the tap compatible with machine spindles and automated tapping heads where secure clamping and stable chip evacuation are required.

What does the 6H tolerance mean for threaded assemblies?
A 6H tolerance on the MF 28×1.5 mm thread indicates a standard internal thread class that provides a reliable fit for general engineering assemblies and predictable mating behaviour with external threads.

Does the tool have a specific lead for through‑hole applications?
The tap features a lead cut for through‑hole threads, which facilitates chip flow in through‑hole tapping and reduces the risk of chip packing in serial production.

Which standard does the tap conform to?
The thread form and dimensions are produced in accordance with DIN 13, ensuring compatibility with standard metric fine thread specifications.

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