RUKO KES-DIN335-HSS-TiN-90°-Ø5.3mm Conical Countersink, 6.3mm Cutting Diameter, 3-Flute, TiN Coated

The RUKO KES-DIN335-HSS-TiN-90°-Ø5.3mm conical countersink stands out with its 90° cutting angle and TiN coating, engineered for clean countersinking, deburring, and chamfering in a wide range of materials. Its three-flute ground profile ensures smooth chip evacuation and a fine surface finish, while the cylindrical shank fits standard drill chucks and collet chucks.

Highlights

• DIN 335 C conical countersink with 90° cutting angle
• High-speed steel (HSS) body with titanium nitride (TiN) coating for extended tool life
• Maximum cutting diameter: 6.3 mm; shank diameter: 5.3 mm
• Three-flute design for efficient material removal and reduced vibration
• Suitable for steel, cast iron, non-ferrous metals, and plastics
• Right-hand cutting direction, ground profile for precision

In daily use

This countersink is ideal for preparing through holes and blind holes for flat-head screws, removing burrs after drilling, or creating chamfers on workpiece edges. The TiN coating reduces friction and heat buildup, allowing higher cutting speeds and longer intervals between regrinds. Mount it in a drill chuck or collet chuck and apply consistent pressure for a uniform countersink.

Full specifications

• Tool type: Conical countersink
• Standard: DIN 335 C
• Material: High-speed steel (HSS)
• Coating: Titanium nitride (TiN)
• Cutting angle: 90°
• Maximum cutting diameter: 6.3 mm
• Shank diameter: 5.3 mm
• Overall length: 45 mm
• Shank type: Cylindrical
• Number of flutes: 3
• Application: Countersinking, deburring, chamfering
• Suitable materials: Steel, cast iron, non-ferrous metals, plastics
• Recommended use: For through holes and blind holes
• Manufacturing process: Ground profile
• Direction of cut: Right-hand
• Tool holder compatibility: Drill chucks, collet chucks
• Surface finish: TiN coated
• Product series: RUKO 102103T

Final note

Precision-ground and TiN-coated, this RUKO countersink delivers consistent results across demanding workshop applications.