RUKO KES-DIN335-HSS-90°-28,0mm Countersink Bit

This countersink bit is built around a 90° cutting angle and a 28.0 mm cutting diameter, making it a direct fit for DIN 335 C countersinking tasks where a clean, consistent chamfer is required. The HSS body with bright finish keeps the cutting edges sharp across steel, cast iron, non-ferrous metals, plastics and wood.

Highlights

• 90° countersink angle for standard chamfer geometry
• 28.0 mm cutting diameter with 10.0 mm cylindrical shank
• HSS construction with bright, uncoated surface
• Three-flute ground profile for smooth cutting action
• Right-hand cutting direction

In daily use

The conical shape and ground cutting edges make deburring and countersinking straightforward on a range of materials. The 10.0 mm shank with h8 tolerance fits standard drill chucks, while the three flutes help clear chips and reduce chatter during operation.

Full specifications

• Material: HSS (High-Speed Steel)
• Standard: DIN 335 C
• Countersink angle: 90°
• Cutting diameter (d1): 28.0 mm
• Shank diameter (d2): 10.0 mm
• Overall length (L1): 67 mm
• Number of flutes: 3
• Surface finish: Bright (Uncoated)
• Shank type: Cylindrical
• Cutting edge type: Ground profile
• Cutting direction: Right-hand cut
• Shank tolerance: h8

Final note

Designed for countersinking, chamfering and deburring across common workshop materials.