RUKO KES-DIN335-HSS-TiN-90°-6.3mm Countersink Bit

Machinists and metalworkers rely on the RUKO KES-DIN335-HSS-TiN-90°-6.3mm countersink for precise 90° chamfers, deburring, and countersinking in steel, cast iron, non-ferrous metals, plastics, and wood. Its 6.3 mm cutting diameter and 5 mm cylindrical shank fit standard drill chucks, making it a practical choice for workshop and production use.

Key specifications

• Tool type: Countersink
• Standard: DIN 335 C
• Material: High-Speed Steel (HSS)
• Coating: Titanium Nitride (TiN)
• Cutting angle: 90°
• Cutting diameter (d1): 6.3 mm
• Shank diameter (d2): 5 mm
• Overall length (L1): 45 mm
• Flute length (L2): 10 mm
• Number of flutes: 3
• Shank type: Cylindrical
• Manufacturing process: Ground profile
• Direction of cut: Right-hand cut
• Application: Countersinking, deburring, chamfering
• Suitable materials: Steel, cast iron, non-ferrous metals, plastics, wood
• Surface finish: TiN coated
• Packaging unit: 1 piece
• Series: RUKO 102106
• Tool holder compatibility: Drill chuck

Why choose it

The TiN coating reduces friction and heat build-up, extending tool life and improving surface finish. The three-flute design ensures smooth, chatter-free cutting, while the ground profile delivers consistent accuracy.

Ideal use cases

• Countersinking screw holes in metal components
• Deburring drilled holes
• Chamfering edges for assembly or safety

Good to know

This countersink is part of the RUKO 102106 series and is supplied as a single piece. It is suitable for use with a standard drill chuck.