RUKO KES-DIN335-HSS-TiAlN-90°-Ø4.8mm Countersink Bit

Creating clean, precise chamfers and countersinks in metal and plastic can be challenging with standard drill bits. This RUKO countersink bit solves that problem with a 90° cutting angle and a TiAlN coating that withstands high temperatures, ensuring smooth results in tough materials.

Who is it for

Machinists, metalworkers, and DIY enthusiasts who need to deburr, chamfer, or countersink holes in steel, stainless steel, cast iron, non-ferrous metals, or plastics. Suitable for use in drill chucks and collet chucks.

Main features

• DIN 335 C form countersink with 3 flutes for clean cutting
• High-speed steel (HSS) body with TiAlN coating for high wear resistance and heat resistance up to 800°C
• 90° cutting angle, 4.8 mm main cutting diameter, 5 mm cylindrical shank
• Right-hand cut, ground profile for precision
• Can be used dry or with coolant

Specifications

• Tool Type: Countersink
• Standard: DIN 335 C
• Material: High-Speed Steel (HSS)
• Coating: Titanium Aluminum Nitride (TiAlN)
• Cutting Angle: 90°
• Main Cutting Diameter (d1): 4.8 mm
• Shank Diameter (d2): 5 mm
• Overall Length (l1): 40 mm
• Number of Flutes: 3
• Shank Type: Cylindrical Shank
• Cutting Direction: Right-hand cut
• Recommended Application: Deburring, Chamfering, Countersinking
• Suitable Materials: Steel, Stainless Steel, Cast Iron, Non-Ferrous Metals, Plastics
• Manufacturing Process: Ground Profile
• Heat Resistance: Up to 800°C
• Wear Resistance: High
• Coolant Compatibility: Suitable for dry machining or with coolant
• Tool Holder Compatibility: Drill chucks, Collet chucks

Tips

For best results, use a pilot hole slightly smaller than the countersink diameter and apply steady pressure. The TiAlN coating allows higher cutting speeds and extends tool life in abrasive materials.