Sandvik Coromant 5731305 Turning Insert DNMG432-MF 1105

Product Description

The SANDVIK COROMANT 5731305 is a solid carbide turning insert in the DNMG432-MF geometry, grade 1105, designed for precision external turning operations on CNC lathes and turning centers. The insert features a PVD-applied TiAlN coating that delivers heat resistance and wear protection during medium to finish turning cuts. The 55-degree diamond shape (D) provides a sharp, stable cutting edge suited for profiling and contour work. With a 0.5789-inch cutting edge length, a 0.5000-inch inscribed circle, and a 1/32-inch corner radius, this insert is engineered for consistent dimensional accuracy and surface finish in production turning environments. It carries four usable cutting edges, reducing tooling cost per edge.

This insert is optimized for turning steel as its primary workpiece material and is also rated for stainless steel, superalloys, and titanium. It belongs to the T-Max P series, which targets high-productivity turning in a range of steel and difficult-to-machine alloys. Typical applications include finish to medium turning passes on shaft components, flanges, and turned profiles in industrial manufacturing and precision machining shops. The MF chip breaker geometry is suited for light to medium depth-of-cut operations where controlled chip formation and surface finish are priorities.

Key Features

• Grade 1105 PVD TiAlN coating for extended tool life on steel and stainless applications
• DNMG432-MF geometry with 55-degree diamond insert shape for profiling and contouring
• Four cutting edges per insert for maximized economy per unit
• MF chip breaker designed for controlled chip formation at light to medium feeds
• Neutral hand orientation for flexible holder compatibility
• Clamp and pin holding method for secure, repeatable seating in the toolholder pocket

Compatibility

Designed for use in DNMG-style toolholders with clamp and pin retention, compatible with T-Max P series turning systems. Consult the SANDVIK COROMANT T-Max P toolholder lineup and ISO DNMG 15 04 08 standard pocket specifications to confirm holder fit before installation.

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 manufacturer-specified clamping screw torque procedure outlined in the toolholder documentation, and inspect the pocket seating surface for chips or debris before seating the insert. Do not mix insert grades or geometries within a toolholder pocket, as improper seating can cause insert breakage or workpiece damage.