6.3-25.0mm Countersink Set 90° HSSE-Co 5, 5-Piece Plastic Case - Ruko GmbH

Benefit from reduced axial and radial cutting forces and a variable relief geometry that delivers smooth, chatter-free chamfering across a wide diameter range; the set’s wide chip flute and optimised chip angles ensure excellent heat and chip evacuation for prolonged tool life. Order the ULTIMATECUT countersink set directly via Metav Werkzeuge or consult our specialists if required.

Ruko ULTIMATECUT countersink set DIN 335 — 90° HSSE‑Co, 6.3–25.0 mm, 5‑piece

The Ruko ULTIMATECUT is a precision countersink set designed for quiet, burr‑free chamfering and reliable performance across a broad range of materials and speeds

• Reduced axial and radial cutting forces
• Smooth, chatter-free countersink finish
• Wide chip flute for improved heat removal
• HSSE-Co for extended wear resistance

Consistent, quiet countersinking for repeatable results

The newly developed cutting geometry reduces both axial and radial forces, so feeds can be applied more easily and the machining process runs with noticeably less vibration. This results in a smooth, round, rattle‑free surface finish of the chamfer, improving repeatability in production and reducing the need for secondary deburring. The design suits both hand‑held and machine countersinking operations where process stability matters.

Effective chip control and enhanced wear life

A deliberately wide chip flute combined with optimised chip angle and transition radii promotes efficient chip evacuation and heat dissipation; the effect is reduced thermal loading at the cutting edge and a measurable increase in wear resistance. The HSSE‑Co grade contributes to durability under varying cutting speeds, meaning long tool life during both light finishing passes and more aggressive chamfering.

Versatile use and practical packaging for workshop workflow

Engineered to perform at both high and low cutting speeds without compromising the chamfer quality, the set covers a diameter range of 6.3–25.0 mm at a standard 90° angle (DIN 335), making it suitable for many common applications. The inserts are supplied in a robust plastic case for organised storage and quick tool selection, supporting efficient workshop routines and reduced downtime.

For precise, low‑vibration countersinking choose the ULTIMATECUT set from Ruko — contact Metav Werkzeuge in Emmerich for expert advice and fast supply via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 8000422540NW
• Item designation: Kegelsenkersatz DIN 335 90° ULTIMATECUT 6.3–25.0 mm HSSE‑Co 5-piece
• Manufacturer: Ruko GmbH
• Packaging unit: 1
• UID: 8000422540NW

Core data

• Diameter range: 6.3–25.0 mm
• Countersink angle: 90°
• Number of pieces: 5
• Material grade: HSSE‑Co
• Standard: DIN 335

Special features

• Newly developed cutting geometry reduces axial and radial forces
• Variable relief for quiet, chatter-free countersinking
• Wide chip flute and optimised chip angle for chip and heat evacuation
• Improved wear resistance and reduced material adhesion
• Suitable for high and low cutting speeds
• Supplied in plastic cassette

FAQ

What materials can this countersink set machine effectively?
The ULTIMATECUT countersink set by Ruko is designed to deliver reliable chamfering across a wide range of materials; its geometry and HSSE‑Co grade offer effective performance in many common metals and engineering plastics.

What is special about the cutting geometry?
Ruko’s ULTIMATECUT features a newly developed insert geometry that reduces axial and radial forces and includes a variable relief which produces a quiet, chatter‑free countersinking action and consistent surface quality.

Is the set suitable for high-speed operations?
Yes — the combination of optimised chip grooves and HSSE‑Co construction allows the Ruko ULTIMATECUT set to be used at both high and low cutting speeds without loss of chamfer quality.

What is included in the delivery?
The set comprises five countersinks covering 6.3–25.0 mm diameters, presented in a durable plastic cassette for organised storage and quick access.

Which standard does the set conform to?
The tools follow the DIN 335 specification and provide a universal 90° countersink angle suitable for standard chamfering tasks.

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