4.3mm Countersink DIN 335C 90° HSS TiN 3-Flute Cylindrical Shank - TECWERK

Take advantage of the combination of HSS durability, TiN wear resistance and a 90° cutting geometry for reliable chamfering and burr-free finishes; designed to reduce chatter and support consistent cycle times on mixed workshops tasks. Order the countersink directly via Metav Werkzeuge or ask our consultants if needed.

Countersink DIN 335 C 90° Ø 4.3 mm HSS TiN, 3‑flute — TECWERK precision countersink with cylindrical shank

The Countersink DIN 335 C 90° Ø 4.3 mm HSS TiN is a purpose-built tool for chamfering and deburring drilled holes in steel, cast components and non‑ferrous metals, offering a secure fit on standard holders and steady, rattle‑free cutting through three flutes

• HSS, TiN-coated 3‑flute design
• 90° chamfer angle for standard countersinking
• Cylindrical shank for secure mounting
• Rattle-free cutting with 0.07 mm/rev in steel

Precision geometry for consistent chamfers and burr removal

The tool’s 90° cutting angle and three‑flute geometry deliver a stable cutting action that produces clean, repeatable chamfers and efficient deburring. The combination of HSS core material and TiN coating increases edge life and reduces adhesion, so tool changes are less frequent and process interruptions are minimised. For production environments where hole preparation quality affects assembly or finishing, this countersink supports lower rework rates and predictable part quality.

Materials and cutting performance explained

Designed for use on steel, castings and non‑ferrous metals, the tool tolerates typical workshop feeds and forces. The manufacturer’s feed guideline in steel up to 500 N is 0.07 mm/rev, which balances material removal with surface finish and tool life. The TiN coating improves heat resistance and reduces built‑up edge on softer alloys, while the HSS substrate retains toughness during intermittent cuts. For operators unfamiliar with technical parameters: a lower feed improves finish, higher feed speeds up production but may shorten tool life.

Reliability in the machining process and easy handling

A cylindrical shank ensures straightforward mounting in chucks and holders, enabling quick changeover and consistent concentricity. The three‑flute design contributes to a chatter‑free cut, reducing vibrations that can damage components or compromise surface appearance. This steadiness supports downstream processes such as spotfacing or countersunk fastener seating, meaning fewer rejects and less manual rework for workshop staff.

Where this countersink adds value in daily work

Suitable for manual drilling rigs as well as CNC setups, the countersink is ideal when a uniform chamfer or a burr‑free hole edge is required before assembly or coating. The DIN 335 C standard geometry aligns with common engineering specifications, so components meet interchangeability requirements and assembly tolerances. For procurement teams and workshop managers, the tool offers a balance of durability, compatibility and straightforward integration into existing tooling sets, reducing the need for specialised holders or additional handling steps.

For procurement guidance or to discuss TECWERK countersinks from stock, contact Metav Werkzeuge in Emmerich for prompt supply and technical consultation on selection and tool integration.

Technical Data

• Article number: 2000865189NW
• Designation: Countersink DIN 335 C, 90° Ø 4.3 mm
• Manufacturer: TECWERK
• Packaging unit: 1

Facts

• Diameter: 4.3 mm
• Chamfer angle: 90°
• Flutes: 3
• Feed in steel (≤ 500 N): 0.07 mm/rev

Special features

• Material: HSS
• Coating: TiN
• Shank: Cylindrical shank
• Standard: DIN 335 C
• Applications: steel, castings, non‑ferrous metals
• Cutting behaviour: rattle‑free due to three flutes

FAQ

What materials can this countersink be used on?
The countersink is suitable for steel, cast components and non‑ferrous metals; the tool’s HSS body with TiN coating aids performance across these materials.

How does the three‑flute design benefit machining?
Three flutes provide a rattle‑free, more continuous cutting action that improves surface finish and reduces vibrations compared with two‑flute variants.

What mounting system is required for the tool?
The tool features a cylindrical shank for mounting in standard chucks and holders commonly used in manual and CNC drilling applications.

What feed rate should be used in steel?
For steel up to 500 N feed force, the recommended guideline is 0.07 mm/rev, balancing finish and tool life as indicated by the manufacturer.

Does the tool conform to recognised standards?
Yes, the geometry follows DIN 335 C, ensuring compatibility with standard chamfer and countersink specifications.

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