Kennametal 5534266 Indexable Drill Insert Sppxmd KCU25

Product Description

The KENNAMETAL 5534266 is a square indexable drill insert in the SPPX style, grade KCU25, designed for use in indexable insert drills in demanding machining operations. Manufactured from fine-grain carbide with a CVD-applied TiCN and Al2O3 coating, this insert delivers wear resistance and thermal stability during high-feed drilling. The insert carries a 15T508 size designation, a 0.6193-inch inscribed circle, a corner radius of 0.0315 inches, and an 11-degree relief angle. Right-hand cutting orientation is standard. Installation is performed by qualified machinists or tooling technicians working with compatible insert drill bodies.

This insert is suited for metal-cutting applications where indexable drill tooling is used in CNC machining centers, turning centers, or drill press setups. The MD chipbreaker geometry is intended for a range of workpiece materials where chip control is a priority. The KCU25 grade with CVD TiCN and Al2O3 coating is typically selected for steel and cast iron drilling applications requiring a balance of toughness and heat resistance. Minimum order quantity is 1 insert per package.

Key Features

• Insert style SPPX, square shape with right-hand cutting orientation
• Grade KCU25 fine-grain carbide construction for toughness and wear resistance
• CVD-applied TiCN and Al2O3 coating for thermal stability and surface durability
• MD chipbreaker geometry for controlled chip formation during drilling
• 0.6193-inch (15.73 mm) inscribed circle with 0.0315-inch (0.80 mm) corner radius
• 11-degree relief angle with 0.2165-inch mounting hole diameter

Compatibility

Designed as an OEM-style replacement indexable drill insert for compatible SPPX-style indexable insert drill bodies requiring a 15T508 square insert in KCU25 grade.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Ensure the machine spindle is fully stopped and locked out before indexing or replacing inserts. Use the appropriate torx or hex key as specified by the drill body manufacturer when seating the insert to avoid insert cracking or improper seating. Inspect the insert pocket and clamping screw for wear or debris before installation.