Kennametal 7034300 Carbide Indexable Drill Insert KC7140

Product Description

The KENNAMETAL 7034300 is a carbide indexable drill insert designed for use with Drill Fix series indexable drilling systems. Manufactured to grade KC7140 with a TiN/TiCN/TiN multilayer coating, this insert delivers wear resistance and thermal protection in demanding hole-making operations. It features an 8-degree relief angle, a 0.6 mm corner radius, and a proprietary DFPR shape. With an inscribed circle of 14.45 mm and a thickness of 4.4 mm, it seats precisely in compatible DFPR-style drill bodies. Licensed machinists and tooling technicians working in production or job-shop environments are the primary installers of this insert.

This insert is suited for ferrous and non-ferrous drilling applications where indexable tooling is used in place of solid carbide drills. The MS chipbreaker geometry is optimized for steel and general-purpose turning and drilling operations. It fits DFPR-compatible insert pockets in the Drill Fix series drill body. Typical applications include through-hole and blind-hole drilling on CNC machining centers and turning centers. Insert size code 14 corresponds to the 14 mm insert seat class.

Key Features

• Carbide substrate with TiN/TiCN/TiN multilayer coating for extended tool life
• KC7140 grade provides balanced toughness and wear resistance for steel cutting
• MS chipbreaker geometry promotes efficient chip evacuation in drilling operations
• DFPR proprietary shape with 8-degree relief angle reduces cutting forces at entry
• 0.6 mm corner radius (0.0240 inches) limits edge chipping on drill exit
• ANSI and ISO code DFPR140406MSI for cross-reference ordering

Compatibility

Designed for use with DFPR-style Drill Fix series indexable drill bodies that accept insert size 14 seats. Compatible drill style is listed as DFPR per manufacturer specifications.

Installation Notes

Indexable drill inserts should be installed by a qualified machinist or tooling technician. Always power down and lock out the machine spindle before seating or indexing inserts. Use the correct torx or hex key specified by the drill body manufacturer to achieve proper clamping torque - do not overtighten or use impact tools on insert screws. Inspect the insert pocket and clamping screw for wear or debris before seating a new insert.