R390-180612-PM Carbide Milling Insert

The R390-180612-PM is a high-performance carbide milling insert designed for CoroMill 390-type milling cutters. It is optimized for shoulder milling, slotting, ramping, and helical interpolation, providing exceptional versatility across a wide range of machining applications.

The PM geometry is specifically engineered for medium cutting conditions, offering excellent chip control and reduced cutting forces. With its robust edge design, the insert ensures reliable performance in steels, stainless steels, and cast irons. It is widely used in general engineering, mold-making, and automotive industries where stability, accuracy, and long tool life are essential.

The 180612 designation refers to the insert size: 18 mm length, 6.35 mm thickness, and a 12 mm cutting edge, making it suitable for medium-depth milling operations. The insert’s advanced coating technology enhances wear resistance and heat stability, ensuring consistent performance even under demanding conditions.

Code Breakdown:

• R390 – Insert type for CoroMill 390 cutters

• 18 – Insert length: 18 mm

• 06 – Insert thickness: 6.35 mm

• 12 – Cutting edge length: 12 mm

• PM – Chipbreaker geometry for medium machining

Key Features:

• Carbide milling insert for CoroMill 390 cutters

• Geometry PM for medium cutting conditions

• Insert size: 18×6.35×12 mm

• Excellent chip evacuation and reduced cutting forces

• High wear resistance and thermal stability

• Suitable for steels, stainless steels, and cast irons

• Long tool life in shoulder and slot milling

Equivalent Inserts:

• Sandvik: R390-18 06 12M-PM 1030 / 1040

Compatible Tool Holders:

• CoroMill 390 milling cutters

• Other cutters designed for R390-180612 inserts