Sandvik Coromant 5731125 DNMG433-QM Turning Insert

Product Description

The SANDVIK COROMANT 5731125 is a DNMG433-QM 1105 grade turning insert designed for external turning operations on CNC lathes and turning centers. Manufactured from solid carbide with a TiAlN PVD coating, this insert delivers wear resistance and thermal stability when cutting steel, stainless steel, superalloys, and titanium. The insert features a 55-degree diamond shape (DNMG style), a neutral hand orientation, and a QM chip breaker geometry. With an inscribed circle of 0.5 inches and a corner radius of 3/64 inches (0.0469 inches), it is engineered for precise, controlled chip formation in the T-Max P series platform. Licensed machinists and CNC operators install this insert as part of standard indexable tooling systems.

This insert is suited for finish to medium roughing passes on steel and difficult-to-machine materials including stainless steel, superalloys, and titanium. The QM chip breaker geometry is optimized for positive chip control across a range of feed rates and depths of cut. It is a common choice in production turning environments where consistent tool life and surface finish quality are required on ISO P and M workpiece materials. The T-Max P series platform is widely used in both light and moderate interrupted cutting scenarios.

Key Features

• Grade 1105 solid carbide substrate with TiAlN PVD coating for elevated heat and wear resistance
• QM chip breaker geometry for effective chip control on steel, stainless, superalloy, and titanium workpieces
• 55-degree diamond insert shape (DNMG) with neutral hand orientation for versatile turning applications
• Corner radius of 3/64 inches (0.0469 inches) for controlled surface finish
• 4 available cutting edges per insert for extended cost-per-edge economy
• Compatible with clamp and pin insert holding methods

Compatibility

Designed for use in SANDVIK COROMANT T-Max P series toolholders that accept DNMG style inserts with a clamp and pin holding method. ISO code DNMG 15 04 12-QM 1105 identifies the insert geometry and grade for cross-referencing with compatible toolholder systems.

Installation Notes

Installation is performed by qualified CNC machinists or toolroom technicians. Power down and lock out the machine spindle before indexing or replacing inserts. Use the appropriate torque wrench and manufacturer-specified hardware when securing the clamping pin to avoid insert movement during cutting. Inspect the insert pocket and seating surface for chips or damage before seating a new insert.