6.3–20.5mm Countersink Set 90° HSS Right-Cutting With Cylindrical Shank, RUnaTEC Coating, DIN 355 - Ruko GmbH

Take advantage of the combination of extended tool life, broad material compatibility and standardised geometry for reliable chamfering results across production and maintenance tasks; order the countersink set directly via Metav Werkzeuge or consult our specialists for application advice.

Countersink Set ULTIMATECUT 90° (HSS, RUnaTEC) — Countersink set 6.3–20.5 mm

Countersink Set ULTIMATECUT 90° (HSS, RUnaTEC) is designed for precision chamfering and deburring in metal and plastic applications, delivering consistent 90° chamfers and long tool life.

• RUnaTEC coating for extended tool life
• Conforms to DIN 355 standard
• 90° countersink with cylindrical shank
• HSS for stainless, steel, aluminium, plastics
• Supplied in protective plastic case

Longer life through advanced coating and material choice

The ULTIMATECUT countersink set combines classic HSS tool steel with a RUnaTEC coating, a pairing that reduces wear and preserves cutting geometry under continuous use. The enhanced surface treatment lowers friction and improves heat resistance, which translates into fewer tool changes and higher uptime on production lines. For workshops that prioritise throughput and predictable maintenance intervals, this results in a measurable improvement in process stability and cost-efficiency.

Consistent 90° geometry for reliable joins and countersinks

Built to the DIN 355 profile, the cutters produce a precise 90° chamfer suitable for deburring, screw seat preparation and chamfering at pipe or sheet edges. Standardised geometry means compatibility with established assembly tolerances and repeatable hole preparation, making the set a practical choice for fabricators and maintenance technicians. The right-hand cutting design ensures conventional feed directions, while the size range 6.3–20.5 mm covers the most common countersink diameters used in metalworking and general workshop tasks.

Broad material suitability and practical handling

Manufactured from high-speed steel (HSS), the tools are suitable for stainless steel (V2A), structural steel, aluminium and many plastics, giving flexibility across mixed-material production. The cylindrical shank guarantees secure clamping in standard drill chucks and milling adaptors, while the plastic case protects the cutters during transport and storage. This practical combination reduces setup time and conserves tool life, supporting dependable results in both small-batch repairs and larger shop-floor series work.

For tailored advice on integrating the ULTIMATECUT countersink set into existing processes or to arrange supply via Metav Werkzeuge, please contact our consultants at info@metav-werkzeuge.com or call +49 2822 7131930 — Metav’s specialists are ready to assist.

Technical Data

• Article number: 4000605564NW
• Product name: Kegelsenkersatz 90Grad ULTIMATECUT 4S 6,3-20,5mm HSS RUnaTEC
• Manufacturer: Ruko GmbH
• Packaging unit: 1
• UID: 4000605564NW

Specifications

• Size range: 6.3–20.5 mm
• Angle: 90°
• Pieces: 4

Special features

• RUnaTEC coating for longer service life
• Conforms to DIN 355
• Cylindrical shank
• Right-hand cutting
• HSS suitable for stainless steel (V2A), structural steel, aluminium, plastics
• Packaging: plastic case

FAQ

What materials can be processed with this countersink set? The countersink set is suited to stainless steel (V2A), structural steel, aluminium and many common plastics, thanks to its HSS composition and RUnaTEC surface treatment.

Does the set match industry standards for interchangeability? Yes — the cutters follow the DIN 355 profile and produce standardised 90° chamfers for consistent interchangeability in assembly and repair operations.

How does the RUnaTEC coating benefit daily use? The RUnaTEC coating reduces friction and heat buildup, extending cutting-edge life and maintaining geometry for fewer tool changes and steadier production output.

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