Sandvik Coromant 5915045 CNMG431-SM H13A Turning Insert

Product Description

The SANDVIK COROMANT 5915045 is a solid carbide turning insert designed for precision metal-cutting operations on CNC and manual lathes. It carries the ISO designation CNMG120404SMH13A, identifying its 80-degree diamond shape, neutral hand, medium tolerance, and SM chip breaker geometry. The insert features an uncoated H13A carbide grade, a 0.5 inch inscribed circle, and a corner radius of 0.0157 inches (1/64 inch). With four usable cutting edges and a maximum depth of cut of 0.3346 inches (8.50 mm), it delivers consistent performance in demanding turning applications. It is installed by machinists and CNC operators using clamp and pin holding methods.

This insert is engineered for turning stainless steel as its primary workpiece material (ISO material code M), with secondary suitability for superalloys and titanium (ISO material code S). It belongs to the T-Max P series, which is designed for external and internal turning in production environments where surface finish and edge security are critical. Typical applications include finishing and semi-finishing passes on aerospace components, medical parts, and precision fittings where work-hardening and heat generation are primary concerns. The SM chip breaker geometry is optimized for controlled chip formation in these difficult-to-machine materials.

Key Features

• 80-degree diamond insert shape (CNMG) with neutral hand for versatile turning setups
• Uncoated H13A solid carbide grade suited for stainless steel, superalloys, and titanium
• SM chip breaker geometry for controlled chip formation in difficult-to-machine materials
• Four usable cutting edges per insert for extended tool life per unit
• Maximum depth of cut of 0.3346 inches (8.50 mm) for semi-finishing and finishing passes
• Clamp and pin holding method compatible with standard CNMG toolholders

Compatibility

Designed as an OEM-style replacement turning insert for standard CNMG toolholders that accept a 0.5 inch inscribed circle insert with clamp and pin retention.

Installation Notes

Installation is performed by machinists or CNC operators. Power down and lock out the machine spindle before indexing or replacing inserts. Use the appropriate torque wrench and manufacturer-specified clamping hardware to seat the insert securely in the pocket. Inspect the insert pocket and seating surfaces for chips or debris before installing a new cutting edge.