16.5mm Countersink 90° 3-Flute Solid Carbide Shank 10mm, CBN-Ground Flutes - Ruko GmbH

Benefit from CBN‑ground flutes and a solid‑carbide, uncoated 10 mm shank for burr‑free, low‑speed countersinking; order the RUKO countersink directly via Metav Werkzeuge or ask our consultants if needed.

RUKO Countersink DIN 335C 90° — 16.5 mm, Solid Carbide, 3‑flute, 10 mm shank

The RUKO Countersink DIN 335C 90° is a precision conical countersink designed for clean deburring, chamfering and countersinking applications in workshop and industrial environments.

• CBN‑ground flutes for ultra‑sharp cutting
• Smooth, burr‑free chamfering and countersinking
• Optimised for low cutting speeds
• 3‑flute geometry for stable operation

Dependable burr‑free finishing for production use

The conical cutter combines CBN‑deep‑ground flutes with a solid‑carbide, uncoated body to deliver consistently sharp edges that reduce chatter and eliminate burrs during chamfering. This geometry translates into a reliable surface finish and fewer secondary operations, improving throughput and lowering rework rates. The tool’s 90° angle is optimised for standard countersinking tasks, producing accurate seat surfaces for fasteners.

Stable cutting performance and handling advantages

A 3‑flute geometry and a 10 mm shank provide mechanical stability, reduced vibration and secure clamping in common toolholders. Best results are achieved at low cutting speeds, where the tool’s design prevents rattling and ensures quiet operation. The measured feed guidance specifies 0.14 mm/rev in steel up to 500 N, giving a clear starting point for process setup and predictable cycle times in serial production.

Material suitability and recommended applications

Engineered for precision finishing, the tool is suitable for chamfering, deburring and countersinking operations where surface quality is critical. The deep‑ground flute profile promotes chip evacuation even when working with tougher steels, and the solid‑carbide construction keeps the cutting edges rigid under load. This makes the cutter especially useful for toolrooms, maintenance departments and production lines that prioritise clean assembly holes and consistent fastener seating.

Confirm compatibility with Metav Werkzeuge’s tooling range or request an application consultation from Metav Werkzeuge; contact via info@metav-werkzeuge.com or +49 2822 7131930 for immediate assistance and reliable supply from Emmerich

Technical data

• Article number: 4000601477NW
• Description: Kegelsenker DIN 335C 90° D16.5 mm HM blank Z3 shank D10 mm
• Manufacturer: Ruko GmbH
• Packaging unit: 1
• UID: 4000601477NW

Core measurements

• Diameter: 16.5 mm
• Countersink angle: 90°
• Shank diameter: 10 mm
• Flutes: 3
• Feed in steel up to 500 N: 0.14 mm/rev
• Standard: DIN 335C

Special features

• CBN‑deep‑ground flutes for sharp cutting edges
• Solid‑carbide, uncoated body (HM blank)
• Designed for burr‑free countersinking and deburring
• Optimised for low cutting speeds

FAQ

What materials is this countersink suitable for?
The RUKO conical countersink is designed primarily for steel applications and delivers the best finish at lower cutting speeds; use the specified 0.14 mm/rev feed for steel up to 500 N.

Can the tool be used in standard 10 mm collets?
Yes, the tool’s 10 mm shank fits standard collets and toolholders commonly found in workshop and production settings.

Why are CBN‑ground flutes important?
CBN‑deep‑ground flutes produce extremely sharp cutting edges and improved chip control, which helps the cutter achieve burr‑free chamfers and consistent surface quality.

Which DIN standard does the countersink conform to?
The countersink is manufactured to DIN 335C, providing a standardised 90° geometry for predictable fastener seating.

Is the tool coated or uncoated?
The cutter is supplied uncoated in a solid‑carbide (HM) blank form, prioritising edge sharpness and stability for low‑speed finishing operations.

What is the recommended feed for production runs?
For steels up to 500 N, follow the recommended feed of 0.14 mm/rev as a baseline and adjust conservatively based on machine rigidity and material condition.

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