RUKO KES-Bit-HSS-90°-8,3 mm kartio-upotuspora

With a 90° cutting angle and 8.3 mm cutting diameter, this HSS countersink delivers clean chamfers and deburring in steel, cast iron, non-ferrous metals, and plastics. Its 3-flute ground profile ensures smooth chip removal and vibration-free operation.

Overview

The RUKO KES-Bit-HSS-90°-8.3 mm is a high-speed steel countersink with a cylindrical shank and bright finish. It conforms to DIN 335 C and is suitable for use in drill presses, hand drills, and milling machines.

What stands out

• 90° cutting angle for standard countersinks
• 8.3 mm cutting diameter for common screw sizes
• 3-flute design for smooth cutting
• Uncoated HSS for versatility across materials

Technical details

• Material: High-Speed Steel (HSS)
• Cutting angle: 90°
• Cutting diameter (d1): 8.3 mm
• Shank diameter (d2): 6 mm
• Overall length (L1): 45 mm
• Number of flutes: 3
• Coating: Uncoated (bright finish)
• Standard: DIN 335 C
• Shank type: Cylindrical
• Cutting direction: Right-hand
• Manufacturing process: Ground profile

Our verdict

A reliable HSS countersink for everyday metalworking and woodworking tasks, offering precise 90° chamfers with a durable ground cutting edge.