RUKO ULTIMATECUT conical countersink, HSS DIN 355, diameter 10.4 mm, 90°.

The ULTIMATECUT 4S tapered countersink (Ruko-102874) is a high-performance tool designed to deliver exceptional results in a variety of machining applications. Its innovative uneven-pitch design allows for smooth and quiet countersinking, minimizing vibration and ensuring perfectly circular holes. This countersink is ideal for use with cordless screwdrivers, drills, pillar drills, and CNC machining centers, making it a versatile choice for professionals.

Distributing the cutting load across its four sharp edges significantly reduces axial and radial forces, which not only decreases tool wear but also extends tool life.

• Number of cutting edges: 4
• Coating: Uncoated
• Clamping surface: 3-way spindle
• Cutting direction: Right-hand
• Material: HSS
• Standard: DIN 335
• Countersink angle: 90°
• Main application: 900 series steel N/mm², Steel <1000 N/mm², Aluminum, Bronze, Plastics
• Other applications: Bronze, Cast Iron