Kennametal 1804832 Indexable Drill Insert Dfthp KC7140

Product Description

The KENNAMETAL 1804832 is a solid carbide indexable drill insert designed for high-performance drilling operations in metal-cutting applications. This trigon-shaped insert features an 84-degree included angle and is ground to an 8-degree relief angle, providing a strong cutting edge geometry suited for demanding chip loads. The HP chipbreaker is engineered to manage chip evacuation efficiently in deep-hole and indexable-drill tooling. A PVD-applied TiN and TiCN multilayer coating improves surface hardness and wear resistance. Licensed machinists and tooling technicians specify this insert for production drilling where insert life and dimensional consistency are critical.

This insert is used in CNC machining centers, turning centers with live tooling, and dedicated drilling machines in both job shop and production environments. The DFT insert style is compatible with indexable drill bodies that accept DFTHP-style trigon inserts. Applications include drilling into steel, stainless steel, and cast iron workpieces at material grades C5 and C6. The 12 mm inscribed circle (0.4724 inches), 0.8 mm corner radius (0.0315 inches), and insert size designation 070408 make this suitable for mid-range drill body assemblies requiring tight positional tolerances.

Key Features

• Solid carbide substrate with PVD TiN and TiCN multilayer coating for extended tool life
• HP chipbreaker geometry designed for effective chip control in indexable drill applications
• 84-degree trigon shape with 8-degree relief angle for stable, aggressive cutting
• 12 mm inscribed circle (0.4724 inches) with 0.8 mm corner radius for consistent edge engagement
• Insert size 070408 with 4.4 mm hole diameter for positive seating in compatible drill bodies
• Rated for C5 and C6 material grades covering a broad range of ferrous workpiece materials

Compatibility

Designed for use in indexable drill bodies that accept DFT-style trigon inserts with an HP chipbreaker designation and an 070408 insert size. Verify drill body manufacturer specifications before ordering to confirm seating and clamping compatibility.

Installation Notes

Indexable drill insert installation should be performed by a qualified machinist or tooling technician. Power down the machine and lock out the spindle before replacing inserts. Use the appropriate torx or hex key to the tool manufacturer's specified seating procedure - do not overtighten the clamping screw, as this can fracture the carbide substrate. Inspect the insert pocket and clamping mechanism for wear or debris before seating a new insert.