8.3mm Countersink 90° UltimateCut HSSE-Co 5, Variable Relief, Wide Flute, High Wear Resistance - Ruko GmbH

Take advantage of the combination of significantly reduced axial and radial forces, enhanced chip evacuation and high wear resistance for smoother, more reliable chamfering. Order the countersink directly via Metav Werkzeuge or ask our consultants if needed.

RUKO ULTIMATECUT 90° countersink, Ø 8.3 mm, HSS‑E‑Co5

The RUKO ULTIMATECUT 90° countersink is engineered for precise, vibration‑free chamfering across a wide range of industrial applications, meeting DIN 335C requirements.

Reduced axial and radial forces Extra‑wide chip flute for heat removal Quiet, vibration‑free chamfering High wear resistance from HSS‑E‑Co5

Smoother chamfers through optimised cutting geometry

The ULTIMATECUT’s completely redeveloped cutting geometry reduces both axial and radial forces, which leads to a calmer machining process and a consistently round, chatter‑free surface finish. A specially designed, variably profiled relief minimises contact at the cutting edge and prevents vibration; the result is a precise countersink with reduced risk of edge deformation. This measurable improvement in process stability benefits workshops and production lines that prioritise repeatable quality and reduced rework.

Longer tool life thanks to improved chip and heat management

A combination of tailored rake angles, a refined transition radius and an extra‑wide chip flute ensures effective chip evacuation and improved heat dissipation during the operation. These geometry enhancements minimise material build‑up on the cutting edge and lower thermal loading, which together increase the tool’s wear resistance. Manufactured from HSS‑E‑Co5, the tool maintains cutting performance over extended runs, reducing changeover frequency and supporting uninterrupted production.

Reliable performance across speeds and demanding tasks

The ULTIMATECUT tolerates both high and low cutting speeds without compromising the quality of the countersink. Because the new geometry substantially reduces the thrust required during chamfering, feed forces are lower while surface quality remains high. For steel applications the tool performs with a recommended feed characteristic up to 800 N, corresponding to approximately 0.15 mm per revolution, which helps planners and operators set machining parameters with confidence. The design thus supports versatile integration into diverse machining setups.

Contact Metav Werkzeuge for tailored advice on RUKO ULTIMATECUT countersinks and ensure dependable supply from Emmerich: info@metav-werkzeuge.com • +49 2822 7131930

Technical Data

• Article number: 8000422471NW
• Label: Kegelsenker ULTIMATECUT DIN 335C 90Grad D.8,3mm HSSE-Co 5 RUnaTEC Z.3 RUKO
• Packaging unit: 1
• UID: 8000422471NW
• Manufacturer: Ruko GmbH

Facts

• Diameter: 8.3 mm
• Angle: 90°
• Standard: DIN 335C
• Material: HSS‑E‑Co5
• Feed in steel: up to 800 N → 0.15 mm/rev

Special features

• Newly developed cutting geometry reducing axial and radial forces
• Variable relief for smooth, chatter‑free countersinks
• Extra‑wide chip flute for optimised chip and heat removal
• Geometry reduces material build‑up on the cutting edge
• Suited to a wide range of cutting speeds and applications
• High wear resistance and extended tool life

FAQ

What makes the ULTIMATECUT countersink different from standard countersinks?
The ULTIMATECUT countersink features a newly developed cutting geometry and variable relief that lower axial and radial forces, producing a round, chatter‑free finish and improved tool life.

Can the ULTIMATECUT be used at high cutting speeds?
Yes. The ULTIMATECUT maintains chamfer quality at both high and low cutting speeds thanks to its geometry and enhanced chip evacuation capability.

What material is the countersink made from?
The countersink is manufactured from HSS‑E‑Co5, providing increased wear resistance for prolonged production runs.

Is there a recommended feed parameter for steel?
For steel, the product demonstrates reliable performance with feed characteristics up to 800 N, equivalent to 0.15 mm per revolution.

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