RUKO KES-DIN335-HSS-90°-12,4 mm kartio-upotuspora

Precision-ground 90° countersink bit with a 12.4 mm cutting diameter, crafted from high-speed steel for clean chamfering and deburring in metal and plastic.

Overview

The RUKO KES-DIN335-HSS-90°-12.4mm is a DIN 335 Form C countersink bit designed for creating precise 90° chamfers and countersinks. Its three straight flutes ensure smooth chip evacuation and a clean finish, while the cylindrical shank with h8 tolerance fits securely in standard drill chucks and collet chucks.

What stands out

• High-speed steel construction with hardened and tempered cutting edges for durability.
• 90° cutting angle ideal for countersinking screws to DIN standards.
• Ground profile and bright finish reduce friction and improve cutting performance.
• Versatile across steel, cast iron, non-ferrous metals, and plastics.

Technical details

• Cutting diameter (d1): 12.4 mm
• Shank diameter (d2): 8 mm
• Overall length (l1): 56 mm
• Number of flutes: 3
• Shank type: Cylindrical
• Cutting direction: Right-hand
• Material: High-Speed Steel (HSS)
• Standard: DIN 335 Form C

Our verdict

A reliable, precision-ground countersink bit that delivers clean 90° chamfers in a wide range of materials, backed by RUKO's engineering quality.