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The KENNAMETAL 4042907 is a solid carbide indexable drill insert in the SPPX style with a MD chipbreaker, designed for use in indexable insert drills in metal cutting applications. Manufactured in the KCPK10 grade and coated via CVD with TiCN and Al2O3 layers, this insert delivers wear resistance and thermal stability during drilling operations in steel and cast iron. It features a 0.619 inch inscribed circle, a 0.234 inch thickness, and a 0.047 inch corner radius. Machinists and tooling technicians install this insert into compatible indexable drill bodies as a replaceable cutting element, extending tool life and maintaining bore quality without replacing the entire tool body.
This insert is suited for indexable drilling operations in production machining environments, including job shops and manufacturing facilities running CNC lathes, machining centers, or drill presses. The SPPX insert style and MD chipbreaker geometry are appropriate for drilling in steel and similar materials where chip control and edge durability are priorities. The insert size is 15T512, and the hole diameter measures 0.217 inches for secure seating in the tool body pocket.
Designed as an OEM-style replacement indexable drill insert for tool bodies accepting SPPX-style inserts with a 15T512 insert size and a 0.217 inch mounting hole diameter.
Installation should be performed by a qualified machinist or tooling technician with the machine in a de-energized and locked-out state. Use the correct torx or hex key as specified by the drill body manufacturer to seat the insert firmly in the pocket without over-torquing the clamping screw. Inspect the pocket and clamping surfaces for debris or damage before seating a new insert. Confirm insert index position and secure engagement before resuming machine operation.
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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