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

The RUKO ULTIMATECUT 4S tapered countersink, model Ruko-102876P, is a high-precision tool designed to deliver superior 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 RUnaTEC coating, developed in-house by RUKO, provides exceptional wear resistance and effective penetration into demanding materials such as heat-treated steel.

• Number of cutting edges: 4
• Coating: RUnaTEC
• Clamping surface: 3-way spindle
• Cutting direction: right-hand
• Material: HSS
• Standard: DIN 335
• Countersink angle: 90°
• Main application: 900 N/mm² steel, 1100 N/mm² steel, aluminum, plastic
• Other applications: bronze, iron cast

The ULTIMATECUT 4S's 3-component shank ensures optimal power transmission, preventing chuck slippage during operation, which contributes to a perfect, vibration-free finish.