7mm Countersink HSS 90° 3-Flute Cylindrical Shank - TECWERK

Benefit from a durable HSS construction combined with a 90° cone geometry and a 3‑flute layout for fast, chatter‑free countersinking; order the TECWERK 7 mm countersink directly via Metav Werkzeuge or ask our consultants if needed.

TECWERK Countersink DIN 335 C, 90° D7 mm – HSS, 3 flutes

TECWERK Countersink DIN 335 C is a high‑speed steel conical countersink designed for clean deburring and chamfering of drilled holes in a range of engineering materials.

• HSS construction, DIN 335 C geometry
• 90° cone angle for standard countersinking
• Three flutes for chatter‑free cutting
• Cylindrical shank for secure clamping

Faster, more reliable hole finishing thanks to optimized cutting geometry

The combination of HSS material and a 3‑flute design delivers a controlled material removal rate and a consistently chatter‑free cut. Measured feed guidance — 0.09 mm/rev in steel up to 500 N — allows predictable cycle times and reduced rework. For production environments and jobbing workshops alike, this translates into fewer rejects and a smoother finishing process. The tool’s compliance with DIN 335 C provides a familiar geometry for standardised countersinking operations, helping to maintain process stability.

Versatile application across common engineering materials

Manufactured for use on steel, cast iron and non‑ferrous metals, the tool’s HSS composition balances toughness and edge retention for frequent deburring tasks. The cone profile at 90° suits many standard fastener head angles, making the tool suitable for preparatory machining, assembly countersinking and manual deburring stations. Material versatility reduces tool changes and simplifies tooling lists for mixed‑material production runs.

Practical design that supports efficient handling and tool holding

A cylindrical shank ensures secure seating in standard chucks and collets, enabling quick tool changes and reliable concentricity. The central cone geometry promotes even contact with the hole edge, reducing the tendency to undercut or produce uneven chamfers. As a result, finishing operations benefit from consistent surface quality and improved repeatability, particularly when integrated into automated or semi‑automated tooling setups.

Trusted sourcing and integration into workshop supply

Specification clarity and repeatable performance are essential for workshop procurement. The tool arrives ready for immediate use and integrates with standard countersinking workflows. Metav’s position as a precision partner ensures that technical advice and consistent product availability support ongoing production needs; the Emmerich hub acts as a quality filter for European supply chains, reinforcing long‑term reliability and consistent delivery. The result is fewer interruptions and a stable supply of precision consumables.

For precision countersinking with the TECWERK HSS geometry, contact Metav Werkzeuge in Emmerich for ordering and technical guidance at info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 2000865157NW
• Label: Kegelsenker DIN 335C 90Grad D.7mm HSS Z.3 TECWERK
• Manufacturer: TECWERK
• Packaging unit: 1

Facts

• Diameter: 7 mm
• Cone angle: 90°
• Number of flutes: 3
• Feed in steel up to 500 N: 0.09 mm/rev
• Shank: cylindrical

Special features

• Material: HSS
• Standard: DIN 335 C
• Application: countersinking and deburring of drilled holes
• Suitable for: steel, cast iron, non‑ferrous metals
• Three cutting edges for reduced vibration and smoother cutting

FAQ

Which materials can be processed with this countersink?
The countersink processes steel, cast iron and non‑ferrous metals as specified; the HSS composition provides a balance of toughness and edge life for these materials.

Is the geometry standardised for common fastener types?
Yes, the tool follows DIN 335 C with a 90° cone angle, making it suitable for many standard countersinking and chamfering requirements.

What feed guidance is given for use in steel?
A recommended feed in steel up to 500 N is 0.09 mm per revolution, providing predictable material removal for consistent chamfer quality.

How does the three‑flute design affect machining quality?
The 3‑flute layout produces a steadier cut with less vibration, resulting in a chatter‑free finish and reduced likelihood of torn edges.

Is the shank compatible with standard toolholders?
The cylindrical shank is intended for secure clamping in common collets and chucks, aiding concentricity and ease of tool changes.

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