RUKO KES-DIN335-HSS-TiN-90°-5.0mm Countersink Bit

Creating clean, precise countersinks in metal and plastic often requires a tool that can handle deburring and chamfering without dulling quickly. The RUKO KES-DIN335-HSS-TiN-90°-5.0mm countersink bit addresses this by combining a high-speed steel body with a titanium nitride coating, delivering sharp 90° cuts with three flutes for smooth results.

Who is it for

This countersink bit suits machinists, metalworkers, and DIY enthusiasts who need a reliable tool for deburring holes, chamfering edges, or preparing surfaces for flat-head screws in materials like steel, cast iron, non-ferrous metals, and plastics.

Main features

• 90° cutting angle for standard countersinks
• TiN coating reduces friction and extends tool life
• Three-flute design for stable, chatter-free cutting
• Ground from solid HSS for precision and durability
• Cylindrical shank fits standard drill chucks

Specifications

• Tool type: Countersink bit
• Standard: DIN 335 C
• Material: High-speed steel (HSS)
• Coating: Titanium nitride (TiN)
• Cutting angle: 90°
• Cutting diameter (d1): 5.0 mm
• Shank diameter (d2): 3.0 mm
• Overall length (l1): 45 mm
• Number of flutes: 3
• Cutting direction: Right-hand cut
• Application: Deburring, chamfering, countersinking
• Suitable materials: Steel, cast iron, non-ferrous metals, plastics
• Manufacturing process: Ground from solid
• Recommended use: Machine and hand use

Tips

Use a cutting fluid when working with steel to prolong bit life and achieve a smoother finish. For best results, run the bit at moderate speeds and apply steady pressure.