Seco 02730819 DNMG442MF2 TH1000 Turning Insert

Product Description

The SECO 02730819 is a solid carbide turning insert in the DNMG-MF2 series, designed for high-performance metal cutting in demanding production environments. It carries the TH1000 manufacturer grade and features a multilayer TiAlSiN PVD coating applied over a carbide substrate. The insert geometry is a 55-degree diamond (rhombic) shape with an inscribed circle of 0.5 inches, a corner radius of 0.03125 inches, and an insert thickness of 0.25 inches. With four cutting edges and an MF2 chip breaker optimized for finishing operations, this insert delivers consistent chip control at light-to-moderate depths of cut. Machinists and CNC turning specialists install this insert on negative-rake toolholders using clamp, pin, or lever-lock holding methods.

This insert is intended for finishing operations on superalloys, titanium, and hardened materials — workpiece categories classified under material grades S05 and H05. The TH1000 grade provides high wear resistance suited to superalloys and titanium, along with a range of wear resistance to toughness for hardened materials. Typical applications include back turning, boring, facing, and standard OD turning. The MF2 chip breaker geometry supports finishing passes where close tolerances and surface finish quality are priorities. This insert is sold individually with a minimum order quantity of 10 units.

Key Features

• TiAlSiN multilayer PVD coating for high wear resistance in superalloy and hardened-material applications
• 55-degree diamond (DNMG) insert shape with negative rake and negative side clearance
• MF2 chip breaker geometry optimized for finishing operations
• Four usable cutting edges per insert
• Compatible with clamp, pin, and lever-lock toolholder systems
• Chamfered and honed cutting edge style for edge stability at light depths of cut

Compatibility

Designed for use in DNMG-style negative-rake toolholders that accept a 442 ANSI size code (ISO 150608) insert. Compatible holding methods include clamp, pin, and lever-lock systems. Industry standard number DNMG442-MF2; ISO code DNMG150608-MF2.

Installation Notes

Installation is performed by a qualified machinist or CNC tooling technician. Always index or replace inserts with the machine powered down and the spindle at a full stop. Use the appropriate torque wrench for the clamping screw — follow the toolholder manufacturer's specification for clamp torque, as no insert-specific value applies here. Inspect the toolholder pocket and seating surface for chips or wear before seating a new insert to ensure proper contact and dimensional accuracy.