RUKO ULTIMATECUT 4S HSS conical countersink Ø 12.4 mm DIN 355 90°

The ULTIMATECUT 4S tapered countersink (Ruko-102876) is a high-performance tool designed to deliver exceptional results in a variety of machining applications. Its innovative uneven pitch redefines countersinking, providing a smooth and quiet cutting action that minimizes vibration and ensures a perfectly circular finish. Thanks to its design, cutting loads are efficiently distributed across its four sharp cutting edges, reducing axial and radial forces and thus extending tool life.

This countersink is versatile and can be used with cordless screwdrivers, drills, pillar drills, and CNC machining centers. It allows for drilling holes up to Ø 40.0 mm, a diameter previously impossible with hand tools.

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