Seco 00072235 CNMG433-MR3 CP200 Turning Insert 1/2 in Ic

Product Description

The SECO 00072235 is a CNMG433-MR3 indexable turning insert manufactured from solid carbide with a multilayer PVD TiAlN and TiN coating. Carrying the CP200 manufacturer grade, it features an 80-degree diamond insert shape, a 1/2-inch inscribed circle, a 3/64-inch (0.0472 inch) corner radius, and a 3/16-inch insert thickness. The MR3 chip breaker geometry and chamfered-and-honed cutting edge style are engineered primarily for stainless steel and superalloy and titanium workpiece materials. With four cutting edges and a neutral hand orientation, this insert suits high-productivity turning, facing, and boring operations where tool life and edge integrity under demanding cuts are the priority.

This insert is rated for primary use on stainless steel and superalloys and titanium (ISO material codes M and S), with secondary suitability on steel and cast iron (ISO material codes P and K). It fits standard CNMG-series toolholders that accept clamp, pin, or lever-lock holding methods. Typical applications include external and internal diameter turning, shoulder facing, and boring operations on CNC lathes and turning centers in general machining and aerospace or energy component shops. Maximum depth of cut reaches 0.4606 inch, making it capable across roughing and semi-finishing passes.

Key Features

• CP200 PVD multilayer TiAlN and TiN coating for heat resistance and edge wear on difficult alloys
• MR3 chip breaker geometry optimized for stainless steel, superalloys, and titanium
• 80-degree diamond insert shape (CNMG style) with chamfered and honed cutting edge
• Four usable cutting edges per insert for extended tool economy
• Neutral hand orientation — compatible with both right-hand and left-hand toolholder setups
• Multi-use application: turning, facing, and boring from a single insert geometry
• Meets ANSI and ISO standards; ISO designation CNMG120412-MR3

Compatibility

Designed for use in CNMG-series toolholders that accept clamp, pin, or lever-lock insert holding methods with an insert size code of 433 and a 0.2028-inch hole diameter. Verify toolholder pocket specifications before ordering.

Installation Notes

Indexable insert replacement is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before accessing the toolholder. Use the correct torque wrench and manufacturer-specified clamp hardware when seating the insert — never over-tighten or substitute fasteners. Inspect the toolholder pocket for wear or debris before indexing to a fresh cutting edge.