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The KENNAMETAL 1914364 is a solid carbide grooving insert designed for precision external grooving operations on CNC lathes and turning centers. Carrying the manufacturer grade KC5025 with a PVD-applied TiAlN coating, this insert delivers wear resistance and thermal stability in demanding cutting environments. It features a 6.35 mm cutting width and a 6.35 mm maximum depth of cut, with a neutral rake geometry and right-hand orientation. The NG4250K designation places it in the Top Notch series, a widely used platform among machinists running high-production turning applications.
This insert is suited for grooving operations in both production and job-shop environments where consistent groove width and depth control are required. The K chip breaker geometry assists with chip control during grooving passes. It is compatible with the Top Notch toolholding system using insert seat size 4. The TiAlN coating makes it appropriate for dry or semi-dry cutting conditions, including applications involving steel, stainless, and similar ferrous materials. It is installed and changed by machinists or CNC tool setters in lathe and turning center applications.
Designed for use with Top Notch series toolholders requiring insert seat size 4 and accepting the NG-style insert form, as indicated by the MSC/Manufacturer Number reference NG4250R.
Grooving inserts should be installed by a qualified machinist or CNC tool setter with the machine fully powered down and spindle locked before insert exchange. Seat the insert firmly into the toolholder pocket and verify clamping force per the toolholder manufacturer guidance before resuming cuts. Inspect the insert seat for chips or debris before seating a new insert, as contamination can affect insert indexing accuracy and surface finish.
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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