ULTIMATECUT 4S RUnaTEC Set of 6 Conical Countersinks - HSS, high precision and durability.

The RUKO ULTIMATECUT 4S countersink is a high-precision tool designed to deliver superior performance when countersinking various materials. With its innovative four-cutting-edge design, this countersink significantly reduces axial and radial forces, resulting in smooth and efficient operation. Thanks to its advanced technology, it allows for countersinking up to 40 mm in diameter, even with hand-held screwdriving and drilling tools. This represents a significant advancement compared to traditional countersinks.

The ULTIMATECUT 4S not only guarantees a perfect, vibration-free countersinking pattern, but also provides energy and material savings of up to 50%, as well as a tool life that can be up to three times longer.

The RUnaTEC coating, developed in-house by RUKO, further enhances the tool's performance, especially on demanding materials such as heat-treated steel, offering efficient penetration and superior 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°
• Main application: Steel 900 N/mm², Steel 1100 N/mm², Aluminum, Plastic
• Other application: Bronze, Cast iron