Sandvik Coromant 5915053 Turning Insert CNMG433-SM 1125

Product Description

The SANDVIK COROMANT 5915053 is a CNMG433-SM 1125 solid carbide turning insert designed for precision metal cutting operations on CNC lathes and turning centers. Coated with TiAlN and AlCr2O3 via a PVD process, this insert delivers strong wear resistance and thermal stability under demanding cutting conditions. It features a neutral hand orientation and an 80-degree diamond insert shape, with a 3/64-inch corner radius measuring 0.0469 inches. The SM chip breaker geometry is engineered specifically for stainless steel, superalloys, and titanium workpiece materials. With four usable cutting edges per insert, it provides extended service life per unit. Licensed machinists and CNC operators working in job shops or production turning environments will find this insert suited to finishing and semi-finishing passes.

This insert is part of the SANDVIK COROMANT T-Max P series and is primarily intended for turning stainless steel, with secondary applications in superalloys and titanium. The CNMG form factor fits standard CNMG-style toolholders that accept a 1/2-inch inscribed circle insert. Clamp and pin insert holding methods are supported. Typical applications include external and internal turning where consistent surface finish and edge integrity are critical. The SM chip breaker geometry handles chip control challenges common to gummy or work-hardening materials such as austenitic stainless grades and nickel-based superalloys.

Key Features

• TiAlN and AlCr2O3 PVD coating for heat and wear resistance in difficult-to-machine materials
• SM chip breaker geometry optimized for stainless steel, superalloys, and titanium
• 80-degree diamond insert shape with neutral hand orientation
• Four cutting edges per insert for improved cost-per-edge value
• Clamp and pin holding method compatibility for secure seating in toolholders
• ISO designation CNMG 12 04 12-SM 1125 for cross-reference with international toolholder standards

Compatibility

Designed for use in standard CNMG-style turning toolholders that accept a 1/2-inch inscribed circle insert. Compatible with clamp and pin holding systems. Primary workpiece material compatibility is stainless steel; secondary compatibility includes superalloys and titanium.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Always power down and lock out the machine spindle before indexing or replacing inserts. Use the correct torque driver for the clamping screw to ensure proper seating without damaging the insert pocket. Inspect the toolholder pocket and seating surfaces for chips or debris before mounting a new insert.