RUKO HSS DIN 373 Flat Countersink Set, 6 pieces, for core holes.

The Ruko-102452RO flat countersink set is specifically designed for creating core holes in a variety of materials. This set includes six countersinks that allow you to work with M3, M4, M5, M6, M8, and M10 threads, facilitating the installation of socket head cap screws, self-tapping screws, and slotting screws. Their optimized design ensures a clean finish, ideal for deburring and countersinking without generating burrs or vibrations, resulting in a more efficient and precise work process.

Made from high-speed steel (HSS) and with a 180° countersinking angle, these countersinks are suitable for use on steel, cast iron, non-ferrous metals, and light metals.

• Number of cutting edges: 3
• Coating: Uncoated
• Spindle: Cylindrical
• Cutting direction: Right-hand
• Material: HSS
• DIN standard: 373
• Countersink angle: 180°
• Main application: 900 N/mm² steel, aluminum, brass, plastic
• Other applications: Bronze, cast iron