16.5mm Countersink DIN 335C 90° HSS-Co TiAlN Spiral Flute 3-Edge - TECWERK

Take advantage of high durability and low cutting forces for consistent, chatter-free chamfers across a wide range of materials; order supply or request further technical advice via Metav Werkzeuge for rapid, reliable delivery.

TECWERK Conical Countersink DIN 335 C Ø16.5 mm — HSS‑Co, TiAlN‑coated, 90°

The TECWERK Conical Countersink DIN 335 C Ø16.5 mm is a 90° conical countersink designed for precise chamfering and deburring in production and workshop environments.

• HSS‑Co substrate with TiAlN coating
• 90° conical geometry for precise chamfers
• Spiral flutes for reduced feed and smooth cutting

Precise, burr-free chamfering across diverse materials

The TECWERK conical countersink combines a 90° cutting geometry with three unequal convex spiral flutes to produce consistently round, exact and chatter‑free countersinks. The tool conforms to DIN 335 C and is ground to Form C, ensuring reliable seat geometry for fastener heads and clean chamfers. The cylindrical shank and standard form allow straightforward mounting in common toolholders, while the spiral flute form improves chip evacuation when machining steels, stainless and heat‑resistant steels, aluminium, brass and a variety of plastics.

Lower cutting forces for efficient, safer machining

Spiralised cutting edges and the HSS‑Co substrate result in significantly reduced cutting loads: approximately 60% lower axial feed force and 50% lower radial force compared with conventional designs, which reduces stress on workpieces and toolholders. For higher contact pressures, a recommended reference feed in steel up to 800 N is 0.135 mm/rev, promoting stable performance and enabling faster cycle times with less tendency to chatter. Reduced forces also mean less vibration and improved surface finish without sacrificing tool life.

Durable substrate and coating extend service intervals

The HSS‑Co body paired with a TiAlN coating provides a robust combination of toughness and thermal resistance. The coating increases wear resistance and helps to form a protective oxide layer at elevated temperatures, which reduces adhesive wear and allows the countersink to maintain geometry under demanding conditions. These material choices translate into extended standtime, especially in mixed‑material production runs where tool change frequency impacts uptime.

Easy integration into workshop production

Designed for practical use, the tool’s cylindrical shank and right‑hand cutting direction fit standard collets and holders for swift tool changes. The compact specification supports use across maintenance, prototyping and serial production where consistent chamfer quality is required. Metav’s technical team can provide complementary selection guidance and data for integration into CAM programmes or machine setups to ensure smooth adoption into existing workflows.

For robust, high‑performance countersinking with low feed and radial forces, specify the TECWERK conical countersink with HSS‑Co and TiAlN coating — contact Metav Werkzeuge for availability and technical consultation at info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 2000865294NW
• Designation: Conical countersink, DIN 335 C, 90°, Ø 16.5 mm
• Brand: TECWERK
• Packaging unit: 1

Facts

• Diameter: 16.5 mm
• Angle: 90°
• Flutes: 3 unequal convex, spiral fluted
• Feed in steel (≤ 800 N): 0.135 mm/rev
• Shank: cylindrical

Materials & features

• Material: HSS‑Co substrate
• Coating: TiAlN
• Cutting direction: right‑hand
• Form: C (DIN 335 C)
• Applications: steel, stainless and heat‑resistant steels, aluminium, brass, plastics
• Benefits: round, exact, ratter‑free countersinking; 60% lower axial feed; 50% lower radial force

FAQ

Which materials can be machined with this countersink?
The TECWERK conical countersink (SKU 2000865294NW) is suitable for steel, stainless and heat‑resistant steels, aluminium, brass and a range of plastics.

How does the TiAlN coating affect performance?
The TiAlN coating on the TECWERK HSS‑Co countersink increases thermal stability and wear resistance, helping to extend service life under high temperatures and abrasive conditions.

What are the recommended cutting parameters?
A reference feed in steel up to 800 N is 0.135 mm/rev; the tool’s 90° geometry and Form C profile are designed for standard chamfering and deburring operations.

How is the countersink mounted and what is the cutting direction?
The tool features a cylindrical shank for use in standard collets and holders and is manufactured with a right‑hand cutting orientation.

What performance advantages does this design provide?
The spiralised, unequal convex flutes combined with an HSS‑Co substrate and TiAlN coating deliver 60% lower axial feed force, 50% lower radial force, improved chip evacuation and longer tool life for consistent chamfer quality.

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