20.5mm Countersink 90° HSS 3-Flute Cylinder Shank For Deburring And Countersinking Steel Cast Non-Ferrous Metals - TECWERK

Take advantage of the combination of HSS construction, a 90° seating angle and a three‑flute geometry for precise, chatter‑free countersinking in mixed‑metal production; order through Metav Werkzeuge or consult the technical team for application advice.

TECWERK Countersink DIN 335 C — 90° Ø20.5mm HSS, 3‑flute

The TECWERK Countersink DIN 335 C 90° Ø20.5mm is a high‑speed steel countersink with a cylindrical shank, engineered for clean countersinking and deburring of drilled holes across steel, cast iron and non‑ferrous metals.

• HSS conforming to DIN 335 C
• 90° countersink angle for secure seating
• Three‑flute design for chatter‑free cutting

Precision seating and predictable joint quality

The 90° geometry delivers a consistent bearing surface for fasteners and neat chamfers, reducing rework in assembly operations. Manufactured to DIN 335 C standards from HSS, the tool provides dimensional stability under typical workshop loads, which translates into repeatable results and fewer inspection steps. Using a standard cylindrical shank eases tool holding and interchange in common collets and drill chucks, supporting efficient tool changes on both manual machines and light production centres.

Smooth cutting action for extended process uptime

A three‑flute configuration ensures a balanced cut and a chatter‑free chip evacuation pattern, which directly lowers surface irregularities and improves finish quality. The reduced vibration prolongs tool life and protects the component bore from damage, making the cutter suited to continuous use in repetitive tasks. The specified feed behaviour — 0.16 mm/rev in steel at loads up to 500 N — offers a clear process window for stable machining without frequent micro‑adjustments.

Versatility across common workshop materials

Designed for countersinking and deburring holes in steel, cast iron and non‑ferrous metals, the cutter covers a broad range of everyday applications from fabrication and maintenance to precision sub‑assemblies. The material compatibility makes it a practical choice where a single tool is preferred to reduce tool inventory while maintaining quality across different substrates.

Practical handling and integration into production

The tool’s HSS construction combines toughness and wear resistance appropriate for general‑purpose work; when paired with suitable clamping and correct feed settings it supports a steady workflow. The cylindrical shank simplifies retrofitting into existing toolholders, enabling quick deployment without special adaptors. Clear specification and robust design contribute to lower process variability, which benefits both small workshops and larger maintenance departments aiming for predictable throughput.

For reliable, chatter‑free countersinking in mixed‑metal environments, choose the TECWERK 90° HSS countersink and contact Metav Werkzeuge for local supply and technical guidance at info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 2000865170NW
• Item: Kegelsenker DIN 335C 90Grad D.20,5mm HSS Z.3 TECWERK
• Brand: TECWERK

Core specifications

• Diameter: 20.5 mm
• Countersink angle: 90°
• Cutting edges: 3
• Standard: DIN 335 C
• Feed in steel (up to 500 N): 0.16 mm/rev

Materials & special features

• Material: HSS
• Shank type: cylindrical shank
• Suitable for: steel, cast iron, non‑ferrous metals
• Design benefit: chatter‑free cutting due to three flutes
• Application: countersinking and deburring of drilled holes

FAQ

What machines is this countersink suitable for?
The TECWERK countersink is suitable for handheld drills, drill presses and light production centres where a cylindrical shank can be clamped securely.

Can the tool be used on stainless or hardened steels?
The tool is specified for steel, cast iron and non‑ferrous metals; for stainless or hardened materials, machining trials are recommended to verify performance under specific conditions.

How does the three‑flute design affect finish?
The three‑flute geometry provides a balanced cut and improved chip control, resulting in reduced vibration and a smoother chamfer compared with two‑flute variants.

Is there a recommended feed rate for production use?
A reference feed of 0.16 mm/rev in steel at loads up to 500 N is indicated; this provides a practical starting point for establishing stable cutting conditions.

Can the countersink be re‑sharpened?
Re‑sharpening is possible for HSS tools, but frequency and feasibility depend on the extent of wear and the workshop’s tool re‑conditioning capabilities.

Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com