8.3mm Countersink 90° HSS-Co TiAlN, 3 Unequal Spiral Flutes, Cylindrical Shank - TECWERK

Take advantage of precise, chatter‑free countersinking with a tool that combines a HSS‑Co substrate and TiAlN coating for extended service life, plus spiralised geometry that delivers up to 60% lower feed force and 50% lower radial force for smoother operation; order directly via Metav Werkzeuge or consult the team for application advice.

TECWERK 90° countersink DIN 335 C, D 8.3 mm — HSS‑Co, TiAlN

The TECWERK 90° countersink DIN 335 C D 8.3 mm is a spiral‑fluted countersink designed for producing precise, burr‑free chamfers and seatings in a wide range of materials in metalworking and workshop environments.

• HSS‑Co substrate with TiAlN coating
• 90° conical countersink, DIN 335 C
• Spiral‑fluted, 3 unequal convex cutting edges
• Reduced feed and radial forces for smooth sinking

Precise, chatter‑free countersinks that improve repeatability

The spiralised cutting geometry with three unequal convex cutting edges produces a consistently round, vibration‑free chamfer. The spiral flutes ease chip evacuation and reduce cutting shocks, which translates into smoother surface finish and fewer rejects in serial production. Measurable advantages include approx. 60% lower feed force and around 50% lower radial force, reducing strain on toolholders and minimising chatter when working in lathes, drill presses or machining centres.

Geometry optimised for multiple materials and secure seating

With a 90° sink angle and a robust cylindrical shank, the design suits standard countersinking tasks for assembly and fastening. The tool is specified for use in steel, stainless and heat‑resistant steels, aluminium, brass and many plastics; the balanced cut geometry ensures clean chamfers and accurate fastener seating even in mixed‑material batches. This results in fewer reworks and consistent joint integrity where countersinks must match fastener heads precisely.

Durable coating and substrate for extended tool life

Constructed from HSS‑Co and finished with a TiAlN coating, the countersink resists abrasive wear and maintains cutting performance at elevated temperatures. The combination of a high‑performance substrate and hard coating produces longer tool life under continuous use, lowering tool change frequency and contributing to steadier production throughput. The spiralised edges and coating work together to preserve the cutting geometry, especially in harder alloys and abrasive materials.

Practical machining data and handling benefits

The tool conforms to DIN 335 C form C and is right‑hand cutting with spiral flutes for efficient chip control. In steel with cutting forces up to 800 N the recommended feed is approximately 0.105 mm per revolution, offering a useful baseline for setting machining parameters. The cylindrical shank enables secure clamping in standard holders; the result is predictable performance, reduced operator correction and a faster set‑up time between runs.

Contact Metav Werkzeuge to discuss how the TECWERK TiAlN‑coated countersink can reduce rework and improve cycle stability — phone +49 2822 7131930 or eMail info@metav-werkzeuge.com for direct technical advice and supply from Emmerich

Technical data

• Article number: 2000865291NW
• Name: Kegelsenker DIN 335C 90Grad D.8,3mm HSS‑Co TiAlN Z.3 TECWERK
• Manufacturer: TECWERK
• Packaging unit: 1
• UID: 2000865291NW

Facts

• Diameter: 8.3 mm
• Countersink angle: 90°
• Cutting edges: Z = 3 (three unequal convex edges)
• Feed in steel (up to 800 N): 0.105 mm/rev

Special features

• Material: HSS‑Co substrate
• Coating: TiAlN
• Form: DIN 335 C (Form C)
• Flute type: Spiral‑fluted
• Shank type: Cylindrical shank
• Cutting direction: Right‑hand cutting
• Suitable for: Steel, stainless and heat‑resistant steels, aluminium, brass, plastics
• Performance benefits: Round, exact and chatter‑free countersinking; reduced feed and radial forces; high tool life due to spiralised cutting edges and coating

FAQ

What materials can this countersink machine effectively handle?
The TECWERK 90° countersink with HSS‑Co and TiAlN is specified for steel, stainless and heat‑resistant steels, aluminium, brass and various plastics, providing reliable chamfers across these materials.

How does the spiral flute geometry benefit production?
Spiralised flutes on the countersink improve chip evacuation and reduce cutting shocks, which leads to smoother finishes, less chatter and higher repeatability in serial production.

Are there measurable performance gains compared with conventional countersinks?
Yes — the tool specification indicates approximately 60% lower feed force and 50% lower radial force, resulting in easier machining, lower toolholder load and fewer rejects.

What cutting data should be used as a baseline for steel?
A practical baseline is a feed of about 0.105 mm per revolution in steel with cutting forces up to 800 N; adjust feeds based on material and setup.

Is the tool suitable for standard toolholders?
The cylindrical shank is compatible with standard drill and countersink holders, ensuring secure clamping and straightforward integration into existing workflows.

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