6.3mm Countersink DIN 335C 90° HSS Extra-Long Shank 3-Flute, Cylinder Shank - TECWERK

Take advantage of the combination of HSS construction, three-flute geometry and an extra-long shank to achieve fast, chatter-free countersinking and reliable deburring across a range of metals; order the tool directly via Metav Werkzeuge or contact the consultants for technical advice.

TECWERK 90° Countersink DIN 335 C – Ø 6.3 mm, HSS, extra-long

TECWERK 90° Countersink DIN 335 C: a high-speed steel countersink with an extended shank, engineered for precise countersinking and deburring in steel, cast iron and non‑ferrous metals.

• HSS construction for durability and heat resistance
• Extra-long cylindrical shank for deeper reach
• Three-flute geometry for chatter-free cutting
• Conforms to DIN 335 C countersink standard

Faster, more consistent hole finishing for metalworking

The combination of HSS material and a 90° cutting angle yields dependable results when preparing holes for fasteners or removing burrs. The high-speed steel composition provides wear resistance under normal workshop temperatures, so the finish remains consistent over longer runs. With a diameter of 6.3 mm and a geometry designed to reduce vibration, the tool produces a clean chamfer and reduces rework, supporting higher throughput and a lower scrap rate. These measurable improvements address common productivity bottlenecks in small to mid‑sized fabrication and maintenance operations.

Stability and tool control from the extended shank and three‑flute design

An extra-long cylindrical shank improves accessibility for recessed or hard‑to‑reach holes without compromising clamping stability in standard chucks. The three‑flute geometry distributes cutting forces more evenly than two‑flute designs, providing a chatter‑free cut and predictable chip formation. This results in smoother edges and less reliance on secondary finishing. For operations that demand repeatability—such as assembly prep or batch repairs—the tool’s geometry supports consistent cycle times and easier process parameter definition; the recommended feed in steel (up to 500 N) is 0.09 mm/rev, offering a clear guideline for efficient machining.

Practical workshop benefits and compatibility with common materials

Designed to the DIN 335 C profile, the countersink is suitable for countersinking and deburring holes in steel, cast iron and non‑ferrous metals, making it versatile for general workshop use. The tool’s construction and shank form enable straightforward integration into existing tooling setups without special holders. Maintenance is equally simple: resharpening practices for HSS countersinks are well established, allowing long service life when used within recommended feeds and cutting conditions. The result is a robust, cost‑effective finishing tool that supports steady production and fewer interruptions.

For reliable, chatter‑free countersinking choose the TECWERK 90° countersink — contact Metav Werkzeuge in Emmerich for fast availability and tailored technical advice via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 2000865396NW
• Designation: TECWERK 90° countersink, DIN 335 C, Ø 6.3 mm

Data

• Diameter: 6.3 mm
• Countersink angle: 90°
• Flutes: 3
• Recommended feed in steel ≤ 500 N: 0.09 mm/rev
• Shank: cylindrical, extra-long

Special features

• Material: HSS (high-speed steel)
• Standard: DIN 335 C
• Application: countersinking and deburring of holes
• Suitable for: steel, cast iron, non‑ferrous metals
• Geometry: three flutes for chatter-free cutting
• Feature: extended shank for deeper access

FAQ

Which materials can be machined with this countersink?
The TECWERK 90° countersink is suitable for steel, cast iron and non‑ferrous metals, as specified in its DIN 335 C design.

What is the recommended feed when countersinking steel?
For steel up to 500 N, the recommended feed for the tool is 0.09 mm/rev, which balances cutting efficiency and tool life.

Is the shank compatible with standard chucks?
Yes, the extra‑long cylindrical shank fits conventional chucks and holders, enabling easy integration into existing setups.

Can the countersink be resharpened?
Yes; the HSS construction allows for conventional resharpening methods, which helps extend service life when maintained correctly.

What advantage does the three‑flute geometry provide?
The three‑flute geometry reduces vibration and delivers a chatter‑free cut, improving surface finish and consistency compared with two‑flute variants.

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