Kennametal 5066191 Indexable Drill Insert Dftgd KCU40

Product Description

The KENNAMETAL 5066191 is a solid carbide indexable drill insert in the DFT style with a GD chipbreaker, designed for precision hole-making operations in machining environments. It carries a KCU40 manufacturer grade and receives a PVD-applied dual-layer TiN/TiAlN coating that supports wear resistance and thermal stability during drilling. The insert features an 84-degree trigon shape with a 0.5906-inch (15 mm) inscribed circle, a 0.85 mm corner radius, and a neutral hand orientation. Machinists and tooling specialists install this insert into compatible indexable drill bodies for production drilling of ferrous and non-ferrous workpieces.

This insert is suited for indexable drilling applications in CNC machining centers and turning centers across general metalworking, aerospace component manufacturing, and job-shop production environments. The DFT insert style and GD chipbreaker geometry are configured for stable chip control during through-hole and blind-hole drilling operations. The 8-degree relief angle supports clean cutting action on a range of workpiece materials. This insert sells in a package quantity of one with a minimum order quantity of ten units.

Key Features

• Solid carbide construction with PVD-applied TiN/TiAlN dual-layer coating for wear and heat resistance
• KCU40 grade optimized for demanding drilling applications
• 84-degree trigon shape with GD chipbreaker for controlled chip evacuation
• 0.5906-inch (15 mm) inscribed circle with 0.85 mm corner radius
• 8-degree relief angle for clean, stable cutting action
• Neutral hand orientation for versatile toolholder compatibility

Compatibility

Designed for use in indexable drill bodies that accept DFT-style inserts with an insert size designation of 090508 and a 5.5 mm hole diameter mounting. Confirm toolholder specifications before ordering.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Power down and lock out the machine before changing inserts. Seat the insert fully against the pocket faces and torque the clamping screw to the toolholder manufacturer specification. Inspect the insert seat and clamping hardware for wear or debris before each insert change to ensure proper seating and runout control.