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The KENNAMETAL 4042905 is a solid carbide indexable drill insert designed for precision metal-cutting operations in indexable drill bodies. This insert carries the SPPXHP geometry with a manufacturer grade of KCPK10 and is produced via CVD coating, applying a TiCN and Al2O3 multilayer finish that improves wear resistance and thermal stability at the cutting edge. The inscribed circle measures 0.494 inches, the insert thickness is 0.1875 inches, and the corner radius is 0.0469 inches. Licensed machinists and toolroom technicians specify this insert for demanding drilling applications where consistent chip control and extended tool life are required.
This insert is suited for use in indexable drill systems where SPPX-style inserts are specified. Typical applications include hole-making operations in steel, stainless steel, and cast iron across job shop and production environments. The HP chipbreaker geometry is engineered to evacuate chips efficiently in deep or interrupted drilling passes, making it appropriate for CNC machining centers and turning centers equipped with compatible indexable drill bodies. Install quantity is sold as single inserts with a minimum order quantity of 5 units.
Designed as an OEM-style replacement or replenishment insert for indexable drill systems that accept SPPX-style solid carbide inserts with an HP chipbreaker and a 0.494 inch inscribed circle.
Installation should be performed by a qualified machinist or toolroom technician with the machine fully powered down and the spindle locked before exchanging inserts. Use the appropriate torx or hex key to the tool manufacturer's specified seat-clamp procedure as outlined in the drill body documentation. Inspect the insert pocket and clamping screw for wear or damage before seating the new insert. Never force an insert into a pocket that shows signs of debris, damage, or misalignment.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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