Kennametal 3050716 Indexable Drill Insert Dfrmd KC7140

Product Description

The KENNAMETAL 3050716 is a solid carbide indexable drill insert designed for precision drilling applications in metalworking operations. Manufactured to the DFRMD insert style with a KC7140 grade, this insert features a PVD-applied TiN and TiCN multilayer coating that enhances wear resistance and extends cutting tool life. The insert measures 0.2803 inches in length, 0.1929 inches in width, and 0.1098 inches in thickness, with a corner radius of 0.40 mm (0.0157 inches). It is installed and serviced by machinists and tooling technicians in production and job-shop environments.

This insert is suited for indexable drilling operations in ferrous and non-ferrous materials, falling within material grades C5 and C6. The MD chipbreaker geometry supports chip control during through-hole and blind-hole drilling operations. The 0.0906-inch hole diameter and insert size designation of 020204 are consistent with standard indexable drill body configurations used in CNC and manual machining centers. This part is sold individually and requires a minimum order of 10 units.

Key Features

• Solid carbide construction with PVD-applied TiN and TiCN coating for extended wear life
• KC7140 manufacturer grade suited for C5 and C6 material classifications
• MD chipbreaker geometry for controlled chip evacuation in drilling operations
• Corner radius of 0.40 mm (0.0157 inches) for defined edge geometry
• Insert size 020204 with 0.0906-inch mounting hole diameter for standard indexable drill bodies
• Lightweight at 0.05 pounds per insert

Compatibility

Designed as an OEM-style replacement insert for indexable drill bodies accepting DFRMD-style carbide inserts in standard insert size 020204.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician with the machine spindle fully stopped and the machine locked out per applicable safety procedures. Use the correct torque wrench and insert screw specified by the drill body manufacturer — do not over-torque the clamping screw, as carbide inserts are brittle and can fracture under excess clamping force. Inspect the insert pocket for chips or damage before seating the new insert. Replace both inner and outer inserts as a matched set when applicable to maintain balanced cutting geometry.