Seco 02812486 Turning Insert Dnmp 432-MF1 Solid Carbide

Product Description

The SECO 02812486 is a solid carbide turning insert in the DNMP-MF1 series, designed for precision metal cutting on CNC lathes and turning centers. It carries a TiAlSiN multilayer PVD coating applied under the manufacturer grade TH1000, giving the cutting edge strong thermal and wear resistance at elevated cutting temperatures. The insert features a 55-degree diamond shape, a 0.5 inch inscribed circle, and a 1/32 inch (0.0315 inch) corner radius. With four cutting edges and an MF1 chip breaker geometry, it delivers controlled chip formation during finishing and semi-finishing passes on difficult-to-machine materials.

This insert is engineered primarily for cutting superalloys and titanium (ISO material group S) as well as hard materials (ISO material group H), making it well suited for aerospace, medical, and energy sector components. Typical applications include back turning, boring, facing, and general OD turning. The neutral hand orientation and negative rake geometry support stable, chatter-resistant cuts. It is held by clamp, pin, or lever lock toolholders accepting the DNMP insert style. The ISO designation for this insert is DNMG150408-MF1.

Key Features

• TiAlSiN multilayer PVD coating (grade TH1000) for extended tool life in high-temperature cutting
• 55-degree diamond insert shape with four usable cutting edges
• MF1 chip breaker geometry for controlled chip formation in finishing and semi-finishing
• Honed cutting edge style reduces chipping on superalloys and titanium
• Compatible with clamp, pin, and lever lock toolholder systems
• Multi-use capability: back turning, boring, facing, and turning in a single insert style

Compatibility

Designed for use in DNMP-style toolholders accepting a 55-degree diamond insert with clamp, pin, or lever lock holding methods. ISO designation DNMG150408-MF1 can be used to cross-reference compatible toolholder bodies per ANSI and ISO standards.

Installation Notes

Installation is performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and the turret is indexed away from the work zone before seating or removing the insert. Use the correct torque driver for the clamping screw to avoid cracking the carbide substrate — refer to the toolholder manufacturer's specification for screw torque. Inspect the insert pocket and seating surfaces for chips or debris before installing a new insert edge.