RUKO KES-Bit HSS TiN 90° Countersink Bit Ø10.4mm

This RUKO countersink bit stands out with its 90° cutting angle and titanium nitride coating, engineered for clean, chatter-free countersinking in a wide range of materials. The precision-ground HSS body and three-flute geometry deliver smooth chip evacuation and a long service life, making it a dependable choice for professional workshops.

Highlights

• 90° cutting angle for standard countersunk screws
• TiN coating reduces friction and increases wear resistance
• Three-flute design ensures smooth, vibration-free cutting
• Cylindrical shank with 3-flat drive for secure chuck grip
• Suitable for steel, cast iron, non-ferrous metals, and plastics

In daily use

The 10.4 mm maximum cutting diameter matches common screw head sizes, while the 6 mm shank fits standard drill chucks and quick-change holders. Whether deburring holes or preparing countersinks, the right-hand cutting direction and DIN 335 C geometry provide consistent results.

Full specifications

• Product type: Countersink Bit
• Material: High-Speed Steel (HSS)
• Coating: Titanium Nitride (TiN)
• Cutting angle: 90°
• Maximum cutting diameter: 10.4 mm
• Shank diameter: 6 mm
• Shank type: Cylindrical with 3-flat drive
• Overall length: 45 mm
• Number of flutes: 3
• Standard: DIN 335 C
• Cutting direction: Right-hand
• Tool compatibility: Drill chucks, quick-change holders
• Series: Karnasch KES-Bit
• Edge geometry: Precision ground

Final note

For reliable countersinking and deburring, this RUKO bit combines precision grinding with a durable TiN coating to handle demanding workshop tasks.