Kennametal 1804830 Indexable Drill Insert KC7140 Trigon

Product Description

The KENNAMETAL 1804830 is a solid carbide indexable drill insert in the DFT style, designed for use in indexable insert drills in demanding metal-cutting operations. This insert carries the KC7140 manufacturer grade with a TiN and TiCN coating applied via PVD process, targeting improved wear resistance and tool life in steel and cast iron applications. It features an 84-degree trigon shape with an inscribed circle of 10 mm (0.3937 inches), a thickness of 0.1476 inches, and a corner radius of 0.80 mm (0.0315 inches). The HP chipbreaker geometry supports effective chip control at higher feed rates. Installed by machinists and tooling specialists in CNC and manual drilling applications.

This insert is suited for production drilling environments where consistent hole quality and insert longevity are priorities. The DFT insert style with HP chipbreaker is engineered for high-performance drilling into steel and similar workpiece materials. The PVD-applied TiN and TiCN coating layers provide a hard, low-friction surface that resists built-up edge and thermal wear. It is sold individually per package, with a minimum order quantity of 5 units, making it appropriate for toolroom stocking and production replenishment. Insert size designation is 06T308 with a relief angle of 8 degrees.

Key Features

• Solid carbide construction for rigidity and wear resistance in high-feed drilling
• KC7140 grade with PVD-applied TiN and TiCN coating for extended tool life
• HP chipbreaker promotes effective chip evacuation at elevated feed rates
• 84-degree trigon shape with 0.80 mm corner radius for controlled cutting action
• 10 mm inscribed circle and 8-degree relief angle optimized for insert drill bodies
• Insert size 06T308 with 4.4 mm mounting hole diameter for secure seating

Compatibility

Designed for use in indexable drill toolholders that accept DFT-style trigon inserts with a 06T308 insert size designation and a 4.4 mm hole diameter. Verify toolholder specifications before installation.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician with the machine spindle fully stopped and locked out per applicable machine safety procedures. Use the correct torx or hex key driver specified by the toolholder manufacturer to seat the insert and secure the clamping screw to the recommended seating torque as noted in the toolholder documentation. Inspect the insert pocket for debris or damage before seating a new insert. Do not mix insert grades or styles within a multi-insert drill body unless confirmed compatible by the toolholder manufacturer.