Kennametal 5066222 Indexable Drill Insert Dfthp KCU40

Product Description

The KENNAMETAL 5066222 is a solid carbide indexable drill insert in the DFT style, engineered for high-performance drilling applications. It carries the KCU40 manufacturer grade with a PVD-applied TiN and TiAlN dual-layer coating that resists heat and wear during interrupted or continuous cuts. The insert features an HP chipbreaker geometry designed to control chip formation and reduce cutting forces. With a 15 mm inscribed circle, a 0.2067-inch thickness, and a 0.0313-inch (1/32-inch) corner radius, this trigon-shaped insert is sized for precision fitment in indexable drill bodies. Licensed machinists and CNC tooling specialists are the typical end users for this insert type.

This insert is suited for indexable drill applications in metalworking environments, including job shops, production machining, and maintenance operations. The 84-degree included angle and 9-degree relief angle make it appropriate for drilling ferrous and non-ferrous materials where chip control and tool life are priorities. The HP chipbreaker targets medium to high feed-rate drilling scenarios. The neutral hand orientation allows use in standard toolholder configurations without handedness restrictions.

Key Features

• DFT insert style with HP chipbreaker for active chip control at higher feed rates
• KCU40 solid carbide grade with PVD TiN and TiAlN coating for extended wear resistance
• 15 mm inscribed circle (0.5906 inches) and trigon shape for precise indexable drill body fitment
• 0.0313-inch (0.79 mm) corner radius reduces edge chipping on entry and exit
• Neutral hand orientation compatible with standard indexable drill holders
• 9-degree relief angle supports clean cutting action in a range of workpiece materials

Compatibility

Designed as an OEM-style replacement indexable drill insert for toolholders and drill bodies that accept DFT-style trigon inserts with a 15 mm inscribed circle and a 5.5 mm hole diameter.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and the tool is secured before indexing or replacing inserts. Use the correct torque wrench and insert screw specified by the drill body manufacturer — do not overtighten the clamping screw, as carbide inserts are brittle. Inspect the insert pocket and clamping components for wear or debris before seating a new insert.