Sandvik Coromant 5909023 Turning Insert DNMG431-SF 1105

Product Description

The SANDVIK COROMANT 5909023 is a DNMG431-SF 1105 turning insert designed for precision CNC lathe and turning center applications. Manufactured from solid carbide with a PVD-applied TiAlN coating, this insert delivers wear resistance and thermal stability when cutting difficult materials. The 55-degree diamond insert shape (DNMG style) provides two usable points per face for a total of four cutting edges. It carries a neutral hand orientation, a 0.5 inch inscribed circle, and a 0.0156-inch corner radius, making it a precise fit for standard DNMG toolholders used in production turning operations.

This insert is engineered primarily for turning stainless steel (ISO material code M) and is rated for secondary use on superalloys and titanium (ISO material code S). The SF chip breaker geometry is well suited to finishing and semi-finishing passes where controlled chip formation and surface finish are priorities. It is used in residential and commercial machine shops, aerospace component manufacturing, and industrial production environments where tight tolerances on hard-to-machine materials are required. Licensed machinists and CNC operators are the primary installers and users of this insert.

Key Features

• Solid carbide substrate with PVD TiAlN coating for extended tool life on stainless steel and superalloys
• SF chip breaker geometry optimized for finishing and semi-finishing operations
• 55-degree diamond insert shape provides four cutting edges per insert
• Neutral hand orientation compatible with both left- and right-hand toolholders
• ISO designation DNMG 15 04 04-SF 1105 for cross-reference and toolholder matching
• Clamp and pin holding method for secure seating in compatible toolholders

Compatibility

Designed for use in DNMG-style toolholders that accept a 0.5-inch inscribed circle, 3/16-inch thick diamond insert with a clamp and pin holding method. Part of the SANDVIK COROMANT T-Max P series. ISO code DNMG 15 04 04-SF 1105.

Installation Notes

Insert replacement should be performed by a qualified machinist with the machine fully powered down and the spindle locked. Use the appropriate torque wrench and clamp hardware specified for the toolholder to secure the insert — do not over-tighten the clamp screw. Inspect the insert pocket and shim for wear or damage before seating a new insert. Verify cutting edge engagement and clearance before resuming operation.