RUKO ULTIMATECUT tapered countersink, HSS, Ø 40 mm, DIN 355, 90°.

The RUKO ULTIMATECUT 4S tapered countersink, model Ruko-102894P, is a high-precision tool designed to deliver exceptional performance when countersinking diameters up to 40 mm. This innovative countersink features four cutting edges, allowing for optimal distribution of axial and radial forces, ensuring smooth and efficient operation. Its advanced design not only provides a perfect countersinking pattern but also reduces working time by up to 50% and extends tool life up to three times longer compared to conventional models.

The ULTIMATECUT 4S is compatible with hand-held screwdriving and drilling tools, as well as pillar drills and CNC-controlled machining centers, making it a versatile choice for a variety of applications.

The RUnaTEC coating, developed in-house by RUKO, further enhances tool performance, especially on demanding materials such as heat-treated steel, providing effective 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: 900 series steel N/mm², Steel 1100 N/mm², Aluminum, Plastic
• Other application: Bronze, Cast iron