Kennametal 3015439 Indexable Drill Insert Dfrmd KC7140

Product Description

The KENNAMETAL 3015439 is a solid carbide indexable drill insert designed for precision drilling operations in metal cutting and machining applications. Manufactured to insert style DFR with a MD chipbreaker geometry, this insert features a PVD-applied TiN and TiCN multilayer coating for improved wear resistance and tool life. It measures 0.3429 inches in length, 0.2362 inches in width, and 0.1134 inches in thickness, with a corner radius of 0.40 mm (0.0157 inches). The insert size designation is 030204. Licensed machinists and CNC operators working with indexable tooling systems will find this insert suited to demanding metal removal tasks.

This insert is intended for use in indexable drill bodies that accept DFR-style inserts. It is rated for material grades C5 and C6, making it appropriate for machining cast iron, steel, and similar ferrous materials in production machining environments. Typical applications include through-hole and blind-hole drilling on CNC machining centers and drilling machines. The hole diameter is 0.0984 inches (2.5 mm), which corresponds to the standard mounting hole for this insert size.

Key Features

• Solid carbide construction with PVD-applied TiN and TiCN multilayer coating for extended wear resistance
• MD chipbreaker geometry for controlled chip formation in metal drilling
• Corner radius of 0.40 mm for edge stability and reduced chipping at the cutting edge
• Insert style DFR, size 030204, compatible with matching indexable drill bodies
• Material grade C5 and C6 rating suitable for ferrous and cast iron machining
• Lightweight at 0.005 pounds, consistent with standard indexable insert dimensions

Compatibility

Designed as an OEM-style replacement or production-run insert for indexable drill systems that accept DFR insert style geometry in size 030204.

Installation Notes

Indexable drill inserts should be installed by a qualified machinist or CNC tooling technician following the drill body manufacturer's torque and seating specifications. Ensure the machine spindle is fully powered down and the tool is secured in a holder before replacing inserts. Inspect the insert pocket for debris or damage before seating the new insert. Do not modify the insert geometry or coating.