Kennametal 5534259 Sppx Indexable Drill Insert KCU25

Product Description

The KENNAMETAL 5534259 is a square SPPX-style indexable drill insert designed for use in indexable drill bodies requiring a replaceable cutting insert at the outer or inner cutting position. Manufactured from fine-grain solid carbide and finished with a CVD-applied TiCN and Al2O3 multilayer coating, this insert delivers thermal resistance and wear performance in demanding drilling applications. It carries a KCU25 manufacturer grade, a 9.53 mm (0.3752 inches) inscribed circle, an 11-degree relief angle, and a 0.80 mm (0.0315 inches) corner radius. The RHP chipbreaker geometry supports controlled chip evacuation during through-hole and blind-hole drilling operations.

This insert is suited for production drilling in metals including steel, cast iron, and similar ferrous workpiece materials. It is sized to insert size designation 09T308 and is intended for installation into compatible indexable drill toolholders that accept SPPX-geometry inserts. Typical applications include CNC machining centers, turning centers configured for driven tools, and dedicated drilling machines in industrial or job-shop environments. Installation is performed by qualified machinists or tooling technicians. The right-hand cutting direction suits standard right-hand spindle rotation.

Key Features

• Fine-grain solid carbide substrate for rigidity and edge stability
• CVD TiCN and Al2O3 multilayer coating for thermal and abrasion resistance
• KCU25 manufacturer grade suited for ferrous drilling applications
• RHP chipbreaker geometry for controlled chip formation and evacuation
• 11-degree relief angle on SPPX square insert profile
• Insert size 09T308 with 0.80 mm corner radius for defined edge geometry

Compatibility

Designed as a replacement-style indexable drill insert for indexable drill toolholders that accept SPPX-geometry square inserts with a 09T308 insert size designation and a 3.60 mm (0.1417 inches) mounting hole diameter.

Installation Notes

Installation is performed by a machinist or tooling technician using the appropriate Torx or hex drive insert screw specified by the toolholder manufacturer. The spindle must be fully stopped and the machine locked out before insert replacement. Inspect the insert pocket and clamping screw for wear or damage before seating a new insert. Do not exceed the clamping torque value listed in the toolholder documentation for this insert size.