Mitsubishi 660316 Dcmt Carbide Turning Insert MC7025

Product Description

The MITSUBISHI 660316 is a DCMT-style carbide turning insert designed for precision external turning and profiling operations on CNC lathes and turning centers. Built to a Rhombic 55-degree insert shape with a 7-degree relief angle and a 0.40 mm (0.0156 inch) corner radius, this insert delivers controlled chip formation in a wide range of metalcutting applications. The insert carries a MC7025 manufacturer grade with a CVD coating and a neutral hand orientation. With two cutting edges per insert, it offers reliable tool life in production environments where consistency and repeatability are critical. Machinists and CNC operators are the primary installers.

The 660316 is suited for turning operations on steel and similar materials where a moderate corner radius and sharp 55-degree included angle are required for finishing and semi-finishing passes. The DCMT geometry is commonly used in applications requiring positive-rake toolholders with screw-on clamping. The insert fits standard DCMT toolholders with a 3/8-inch inscribed circle and a 5/32-inch insert thickness, making it a practical choice for both production shops and job shops running multi-material programs.

Key Features

• DCMT insert style with Rhombic 55-degree shape for versatile turning and profiling
• MC7025 grade with CVD coating for extended wear resistance in steel cutting
• 7-degree relief angle and 0.40 mm corner radius for controlled surface finish
• Neutral hand orientation for flexible toolholder compatibility
• Two cutting edges per insert for cost-effective tool management
• MM chip breaker geometry for consistent chip control

Compatibility

Designed as an OEM-style replacement or direct-fit insert for standard DCMT toolholders accepting a 3/8-inch inscribed circle and 5/32-inch insert thickness with screw-on or lever-lock clamping.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Always power down and lock out the machine before changing inserts. Use the correct torque wrench and manufacturer-specified clamping hardware to seat the insert properly in the pocket. Inspect the toolholder pocket for wear or debris before seating a new insert, as a contaminated or damaged pocket will compromise insert seating and cutting performance.