RUKO ULTIMATECUT Conical Countersink, HSS, Ø 10.4 mm, DIN 355, 90°.

The RUKO ULTIMATECUT 4S tapered countersink, model 102874P, 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, resulting in smooth and efficient operation. The uneven distribution of forces allows for perfect countersinking without vibration marks, and energy and material savings of up to 50%. Furthermore, the tool life is increased up to three times compared to conventional models.

This countersink is capable of working with diameters up to 40 mm, making it versatile for use with hand tools, pillar drills, and CNC machining centers.

The RUnaTEC coating, developed in-house by RUKO, provides increased wear resistance and effective penetration into demanding materials such as heat-treated steel.

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