8.3mm Countersink DIN 335C 90° HSS 3-Flute Extended Shank for Steel, Cast and Non-Ferrous - TECWERK

A robust combination of HSS construction and a three-flute geometry enables precise, rattle-free chamfering in steel, cast iron and non-ferrous metals; the extra-long cylindrical shank reaches deeper bore edges while maintaining stability. Order the countersink directly via Metav Werkzeuge or consult the specialists for application advice.

TECWERK Countersink DIN 335 C — 90° Ø 8.3 mm, HSS, Extra-Long

The TECWERK Countersink DIN 335 C is an extra-long high-speed-steel countersink designed for chamfering and deburring holes in steel, castings and non-ferrous metals.

HSS material for durability and heat resistance
90° countersink angle for standard chamfers
Three-flute geometry for rattle-free cutting
Extra-long cylindrical shank for deep chamfering

Accurate chamfers with DIN-standard reliability

The extra-long countersink is manufactured to DIN 335 C dimensions and built from HSS, making it suitable for repeated use where dimensional consistency matters. The 90° geometry produces standard chamfers for screw heads and hole preparation, while the tool’s characteristics support controlled metal removal in a range of substrates such as steel, cast iron and non-ferrous metals. With a recommended feed of 0.09 mm/rev in steel up to 500 N, the design balances cutting speed and edge quality, reducing the need for secondary finishing operations and improving throughput in production workflows.

Smooth cutting and vibration control for consistent edge quality

The three-flute configuration reduces axial vibration and distributes cutting forces evenly, which produces a rattle-free cut and a cleaner chamfer surface. Combined with the extra-long cylindrical shank, the geometry preserves tool stability even when reaching deeper bore edges, so process reliability is maintained in fixture setups and handheld operations alike. This results in fewer rejects and less rework, supporting tighter tolerances and repeatable assembly fits.

Simple integration into shop workflows and dependable supply

The cylindrical shank fits standard drill chucks and holders, enabling quick tool changes and straightforward integration into existing tool sets. The countersink’s robust HSS construction keeps regrinding intervals moderate, while the extra length expands application range without compromising the machine’s balance. For procurement, Metav Werkzeuge provides a transparent supply channel and a comprehensive range of precision tools; the Emmerich location acts as a quality filter for European customers, ensuring consistent availability and trusted delivery for production and maintenance needs.

Purchase the TECWERK extra-long HSS countersink via Metav Werkzeuge for assured quality and continuity of supply — contact info@metav-werkzeuge.com or call +49 2822 7131930 for application guidance

Technical data

• Article number: 2000865397NW
• Brand: TECWERK
• Description: Countersink DIN 335 C, 90° Ø 8.3 mm, HSS, extra-long, 3 flutes, cylindrical shank
• Packaging unit: 1

Facts

• Diameter: 8.3 mm
• Countersink angle: 90°
• Number of flutes: 3
• Feed in steel (≤500 N): 0.09 mm/rev

Special features

• Material: HSS
• Standard: DIN 335 C
• Shank: extra-long cylindrical shank
• Application: deburring and chamfering holes in steel, cast iron, non-ferrous metals
• Cutting behaviour: rattle-free due to three-flute geometry

FAQ

What materials is the countersink suitable for?
The TECWERK Countersink DIN 335 C (SKU 2000865397NW) is specified for steel, cast iron and non‑ferrous metals.

How does the three-flute geometry affect the finish?
The three-flute geometry reduces axial vibration and provides a rattle-free cut, resulting in cleaner chamfers and reduced need for secondary finishing.

Can the tool be used in standard drill chucks?
Yes, the extra-long cylindrical shank is compatible with standard drill chucks and common tool holders.

What feed should be used for steel?
For steel up to 500 N, the recommended feed is 0.09 mm/rev as specified for this countersink.

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