RUKO DIN 335 C HSS TiAlN 90° Countersink Bit 9.4 mm Cutting Diameter

Creating clean, precise chamfers and countersinks in metal and plastic can be difficult with standard drill bits, often leaving burrs or uneven edges. This RUKO countersink bit solves that problem with a 90° cutting angle and a TiAlN coating that reduces friction and heat, delivering smooth, accurate results in a wide range of materials.

Who is it for

Machinists, metalworkers, and serious DIYers who need reliable countersinking for screws and deburring of drilled holes. It works on steel, cast iron, non-ferrous metals, and plastics, making it a versatile addition to any workshop.

Main features

• High-speed steel (HSS) body with TiAlN coating for high heat and wear resistance.
• 90° cutting angle conforms to DIN 335 C standard for consistent countersinks.
• Three flutes ensure smooth cutting and efficient chip removal.
• Cylindrical shank fits standard drill chucks.
• Right-hand cutting direction for use in conventional drills and drill presses.

Specifications

• Tool Type: Countersink
• Standard: DIN 335 C
• Cutting Diameter: 9.4 mm
• Shank Diameter: 6 mm
• Overall Length: 45 mm
• Cutting Angle: 90°
• Material: High-Speed Steel (HSS)
• Coating: TiAlN (Titanium Aluminum Nitride)
• Number of Flutes: 3
• Shank Type: Cylindrical
• Cutting Direction: Right-hand
• Recommended Application: Deburring, Chamfering, Countersinking
• Suitable for Materials: Steel, Cast Iron, Non-ferrous Metals, Plastics
• Surface Treatment: TiAlN coated
• Manufacturing Method: Ground Profile
• Heat Resistance: High
• Wear Resistance: Very High
• Coolant Compatibility: Can be used with or without coolant
• Packaging Unit: 1 piece
• Product Series: RUKO DIN 335 C

Tips

Use a cutting speed appropriate for the material being worked. The TiAlN coating allows dry machining, but coolant can extend tool life in demanding applications. Always secure the workpiece and wear eye protection.