RUKO ULTIMATECUT Conical Countersink, HSS, Ø 19 mm, DIN 355, 90°.

The RUKO ULTIMATECUT 4S tapered countersink, model Ruko-102880P, is a high-precision tool designed to deliver exceptional performance when countersinking various materials. With its innovative four-edge design, this countersink significantly reduces axial and radial forces, ensuring smooth and efficient operation. Its ability to countersinks up to 40 mm in diameter, even with hand tools, makes it a versatile choice for machining professionals.

The ULTIMATECUT 4S not only provides a perfect, vibration-free countersinking pattern, but also allows for energy and material savings of up to 50%, as well as tripling tool life.

The RUnaTEC coating, developed in-house by RUKO, further enhances the tool's performance, especially on demanding materials such as heat-treated steel, offering superior penetration and improved wear resistance.

• Number of cutting edges: 4
• Coating: RUnaTEC
• Hold surface: 3-way spindle
• Cutting direction: right-hand
• Material: HSS
• DIN: 335
• Countersink angle: 90°
• Application main: Steel 900 N/mm², Steel 1100 N/mm², Aluminum, Plastic
• Other application: Bronze, Cast iron