Kennametal 5066193 Indexable Drill Insert KCU40 Carbide

Product Description

The KENNAMETAL 5066193 is a solid carbide indexable drill insert designed for use in indexable drilling systems. The insert carries the DFTHP designation, combining the DFT insert style with an HP chipbreaker geometry optimized for high-performance drilling applications. It is manufactured in grade KCU40 with a PVD-applied TiN and TiAlN dual-layer coating that improves wear resistance and thermal stability. With an 84-degree trigon shape, a 0.3150-inch (8 mm) inscribed circle, and a 1/32-inch corner radius, this insert suits precision drilling operations in ferrous and non-ferrous materials. Installation is performed by qualified machinists and tooling specialists in production or job-shop environments.

This insert is intended for indexable drill bodies that accept DFT-style trigon inserts in size 05T308. It is applicable in CNC machining centers, drill presses, and turning centers equipped with appropriate toolholders. The HP chipbreaker geometry is suited to through-hole and blind-hole drilling where controlled chip evacuation is critical. The neutral hand designation makes it compatible with standard right-hand drill body setups. This insert is sold individually with a minimum order quantity of 5 units.

Key Features

• KCU40 solid carbide grade with PVD-applied TiN and TiAlN coating for extended tool life
• HP chipbreaker geometry engineered for controlled chip formation in drilling operations
• 84-degree trigon (triangular) insert shape, size 05T308
• 0.3150-inch (8 mm) inscribed circle with 1/32-inch (0.79 mm) corner radius
• Neutral hand orientation for standard right-hand drill body compatibility
• Relief angle of 9 degrees for positive cutting action and reduced thrust force

Compatibility

Designed as an OEM-style replacement insert for indexable drill bodies that accept DFT-style trigon inserts in size 05T308 with a 3.4 mm mounting hole diameter.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Ensure the drill body and spindle are fully de-energized and stationary before seating or removing the insert. Use the correct torque wrench and insert screw specified by the drill body manufacturer — do not over-torque the clamping screw, as this can fracture the carbide substrate. Inspect the insert pocket for wear or debris before installation to ensure proper seating and repeatability.