Sandvik Coromant 5891393 Turning Insert DNMG431-SF 1115

Product Description

The SANDVIK COROMANT 5891393 is a DNMG431-SF 1115 grade solid carbide turning insert designed for high-performance metal cutting operations on CNC lathes and turning centers. This insert features a 55-degree diamond shape with a TiAlN and AlCr2O3 PVD coating for wear resistance and heat stability at the cutting edge. The SF chip breaker geometry is engineered specifically for stainless steel and superalloy applications where controlled chip formation and cutting edge integrity are critical. With a 0.5 inch inscribed circle and a corner radius of 0.0156 inches, this insert delivers precise, repeatable results across demanding turning operations. It is installed by machining professionals in metalworking and production environments.

This insert is suited for turning stainless steel as its primary workpiece material, with secondary suitability for superalloys and titanium. The T-Max P series geometry makes it appropriate for finishing and light-to-medium roughing passes where surface finish and dimensional control matter. Typical applications include external and internal turning on CNC lathes in aerospace, medical, and industrial manufacturing settings. The neutral hand orientation allows flexible use in standard toolholders designed for DNMG insert styles. It is sold individually but requires a minimum order of 10 units per order.

Key Features

• DNMG431-SF geometry with 55-degree diamond shape for versatile turning applications
• TiAlN and AlCr2O3 PVD dual-layer coating for high heat resistance and extended tool life
• SF chip breaker optimized for stainless steel and superalloy workpiece materials
• Neutral hand insert compatible with standard DNMG clamp and pin toolholders
• Four cutting edges per insert for maximum value per unit
• 0.0156 inch corner radius for controlled surface finish on precision turning passes

Compatibility

Designed as an OEM-style replacement turning insert for toolholders accepting DNMG-style inserts with clamp and pin holding methods, consistent with the T-Max P series platform.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Power down and lock out the machine spindle before changing inserts. Seat the insert fully in the toolholder pocket and secure with the appropriate clamp and pin hardware before resuming operation. Inspect the cutting edge and corner radius condition at regular intervals and index or replace the insert before catastrophic edge failure to protect the workpiece and holder.