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The KENNAMETAL 2598811 is a solid carbide grooving insert in the Top Notch series, designed for external grooving and parting operations on CNC lathes and turning centers. This insert carries the KC5010 manufacturer grade with a PVD-applied TiAlN coating for wear resistance in demanding cutting conditions. It features a right-hand orientation, a cutting width of 3.96 mm (0.1559 inches), and a maximum depth of cut of 3.81 mm (0.150 inches). The neutral rake geometry and 55-degree included angle suit a broad range of workpiece materials in the C3 and C4 material grade classifications. Machinists and toolroom technicians working in production and job-shop environments are the primary users.
This insert is suited for turning and grooving operations in both production and maintenance machining environments. The Top Notch series tooling system is commonly found on manual and CNC lathes across light manufacturing, aerospace component work, and general metalworking shops. The 3.96 mm cutting width is appropriate for precision groove work where dimensional accuracy is critical. A corner radius of 0.19 mm (0.0075 inches) and a 3-degree lead angle support controlled chip formation and surface finish in moderate to high feed-rate applications.
Designed as an OEM-style replacement insert for Top Notch series grooving and parting toolholders that accept the NG3156 insert style. Confirm toolholder seat and clamping system compatibility before installation.
Insert seating and clamping should be performed by a qualified machinist following the toolholder manufacturer guidelines for the Top Notch system. Power down and lock out the machine before changing inserts. Inspect the toolholder pocket and clamping screw for wear or damage before seating the new insert. Do not exceed the maximum depth of cut specification for the insert grade and workpiece material combination.
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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