Kennametal 3015440 Indexable Drill Insert KC7140 Carbide

Product Description

The KENNAMETAL 3015440 is a solid carbide indexable drill insert designed for use in indexable drilling tools in metal-cutting applications. It carries the DFR insert style with an MD chipbreaker geometry and is manufactured to grade KC7140, a PVD-applied TiN and TiCN multilayer coating optimized for cutting performance and tool life. The insert measures 0.4236 inches in length, 0.2906 inches in width, and 0.1492 inches in thickness, with a corner radius of 0.0157 inches (0.40 mm). It fits a 0.1122-inch hole diameter and carries an insert size designation of 040304. Installation is performed by machinists and tooling specialists working with indexable drill bodies on CNC and manual machining equipment.

This insert is suited for drilling operations in ferrous and non-ferrous materials where wear resistance and edge stability are priorities. The KC7140 grade with PVD TiN and TiCN coating is rated for material grades C5 and C6, making it applicable to a range of steel and cast-iron cutting scenarios. The MD chipbreaker geometry supports chip control in through-hole and blind-hole drilling. This part is sold individually but carries a minimum order quantity of 10 units.

Key Features

• DFR insert style with MD chipbreaker geometry for controlled chip evacuation
• KC7140 PVD-applied TiN and TiCN multilayer coating for extended wear resistance
• Solid carbide substrate rated for material grades C5 and C6
• Corner radius of 0.0157 inches (0.40 mm) for edge strength and finish quality
• Insert size 040304 with 0.1122-inch mounting hole diameter for precise indexable body fit

Compatibility

Designed as an OEM-style replacement or direct-fit insert for indexable drill bodies accepting DFR-style inserts with insert size 040304 and a 0.1122-inch hole diameter. Confirm insert style, seat geometry, and chipbreaker designation against the drill body specification before ordering.

Installation Notes

Indexable drill inserts are seated and secured by a tooling specialist or machinist using the torque driver specified by the drill body manufacturer. Power down and lock out the machine spindle before indexing or replacing inserts. Inspect the insert pocket and clamping screw for wear or damage prior to seating a new insert. Do not mix insert grades or styles within a multi-insert drill body unless the body manufacturer explicitly permits it.