20.5mm Countersink 90° HSS TiAlN 3-Flute Cylindrical Shank - TECWERK

Benefit from precision 90° countersinking combined with a TiAlN coating and a three‑flute geometry for a clean, chatter‑free finish; order this tool directly via Metav Werkzeuge or consult the technical team if clarification is required.

Countersink DIN 335 C 90° D.20.5 mm HSS TiAlN Z.3 by TECWERK

The Countersink DIN 335 C 90° D.20.5 mm HSS TiAlN Z.3 is a precision three‑flute countersink designed for accurate chamfering and deburring of drilled holes in steel, cast iron and non‑ferrous metals.

• DIN 335 C standard, 3 flutes
• 90° countersink angle
• TiAlN coating for heat resistance
• Cylindrical shank for secure clamping

Accurate chamfers for reliable assembly and consistent fit

The DIN 335 C geometry and 90° angle deliver reproducible chamfers that facilitate consistent screw seating and weld preparation. The tool’s three‑flute design reduces vibration and produces a chatter‑free cut, which improves surface finish and minimises rework. For production environments that demand repeatable results, this countersink provides dimensional consistency and a predictable chamfer profile that supports quality control processes.

Coating and substrate that extend tool life and performance

Made from HSS and finished with TiAlN, the countersink combines high red hardness with a wear‑resistant surface layer. The TiAlN coating increases thermal stability during elevated cutting temperatures and reduces built‑up edge, which prolongs tool life when working with steel and heat‑resistant alloys. This combination allows longer runs between tool changes and contributes directly to lower process downtime and improved overall tool economy.

Operational efficiency and straightforward handling for workshop use

A cylindrical shank ensures secure clamping in standard tool holders and drilling machines, while the recommended feed in steel up to 500 N is 0.2 mm/rev, giving a practical baseline for setting machine parameters. The countersink is suitable for manual or machine operation and is particularly effective where clean deburring and precise chamfers are required as part of an assembly line or repair workflow. The simple set‑up and stable cutting behaviour reduce cycle variability and support faster throughput.

For reliable 90° countersinking with TiAlN performance, contact Metav Werkzeuge for stock information and technical advice via info@metav-werkzeuge.com or call +49 2822 7131930.

Technical Data

• Article number: 2000865227NW
• Product name: Countersink DIN 335 C 90° D.20.5 mm HSS TiAlN Z.3
• Manufacturer: TECWERK
• Packaging unit: 1

Facts

• Diameter: 20.5 mm
• Countersink angle: 90°
• Flutes: 3
• Shank type: Cylindrical
• Feed in steel (≤500 N): 0.2 mm/rev
• Standard: DIN 335 C

Special features

• Coating: TiAlN
• Material: HSS
• Application: Countersinking and deburring in steel, cast iron, non‑ferrous metals
• Cutting behaviour: Chatter‑free due to three flutes

FAQ

What materials can be processed with this countersink?
The countersink is specified for use in steel, cast iron and non‑ferrous metals; the HSS substrate with TiAlN coating gives improved performance when machining these materials.

Is the 90° angle suitable for screw seating?
Yes, the 90° chamfer produced by this countersink matches standard fastener seating angles and is well suited for reliable screw fitting and weld preparation.

How does the three‑flute design affect cutting?
The three‑flute geometry provides a balanced, chatter‑free cut, improving surface finish and reducing the risk of vibration marks during countersinking.

What feed rate is recommended for steel?
For steel with a clamping force description up to 500 N, a feed of 0.2 mm/rev is indicated as a practical starting point for stable cutting performance.

Which SKU should be ordered for this item?
Order using SKU 2000865227NW for the TECWERK Countersink DIN 335 C 90° D.20.5 mm HSS TiAlN Z.3 to ensure the correct tool and coating configuration.

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