Seco 02790719 Turning Insert Dnmp 431-MF1 TH1000 Carbide

Product Description

The SECO 02790719 is a solid carbide turning insert in the DNMP-MF1 series, designed for precision metal cutting in demanding machining environments. It features a 55-degree diamond shape (Insert Shape Code D) with a TiAlSiN multilayer PVD coating under the manufacturer grade TH1000. The inscribed circle measures 0.5 inches, the corner radius is 0.0157 inches (1/64 inch), and insert thickness is 0.1874 inches. With four cutting edges and a honed cutting edge style, this insert delivers consistent performance in high-wear applications targeting superalloys, titanium, and hard materials. It is installed by machinists and tooling technicians on CNC lathes and turning centers.

This insert is suited for use in turning, facing, boring, and back turning operations on superalloys and hard materials (Primary Workpiece Material Codes S and H, Material Grades S05 and H05). The MF1 chip breaker geometry and negative rake angle make it well-matched to finishing and semi-finishing passes where chip control and edge stability are critical. The neutral insert hand provides flexibility across a range of toolholder configurations. Minimum order quantity is 10 units; package quantity is 1.

Key Features

• TiAlSiN multilayer PVD coating (TH1000 grade) for high-temperature and abrasion resistance in superalloy and hard-material cutting
• 55-degree diamond insert shape with negative rake and 0-degree relief angle (Clearance Code N, Tolerance Code M)
• MF1 chip breaker geometry optimized for finishing cuts with reliable chip evacuation
• Four available cutting edges for extended tool life per insert
• Compatible with clamp, pin, and lever lock insert holding methods
• Multi-use application: turning, facing, boring, and back turning on a single insert

Compatibility

Designed for toolholders accepting DNMP-style inserts with a 0.2028-inch hole diameter and lever lock, clamp, or pin holding methods. Conforms to ANSI and ISO standards; ISO code DNMG150404-MF1. Industry standard number DNMP431-MF1.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Ensure the machine spindle is fully stopped and locked out before seating or replacing inserts. Use the appropriate torx or insert-clamp wrench to secure the insert without over-torquing the clamping mechanism. Verify toolholder pocket condition and seating surface cleanliness before installing a fresh cutting edge.