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The ISCAR 6402291 is a solid carbide grooving insert designed for precision external grooving and turning operations. It carries the GIM3J8A insert style designation and the IC354 manufacturer grade, featuring a PVD-applied TiCN coating that delivers wear resistance and thermal stability at the cutting edge. The insert has a 0.1181-inch (3.00 mm) cutting width, a positive rake angle of 7 degrees, and an 8-degree lead angle. Intended for right-hand tooling setups, this single-end insert is part of ISCAR's Cut-Grip series. Licensed machinists and CNC lathe operators install this insert in compatible Cut-Grip toolholders for high-precision grooving work on turned components.
This insert is suited for grooving stainless steel and steel workpieces, corresponding to ISO material codes M and P. The A chip breaker geometry promotes controlled chip evacuation in these materials, making it a practical choice for both interrupted and continuous grooving passes on CNC turning centers in production and job-shop environments. The overall insert length is 0.6024 inches, and the corner radius measures 0.0087 inches (0.22 mm), supporting tight-tolerance groove profiles. It is packaged individually and sold in multiples of 10.
Designed for use with ISCAR Cut-Grip series toolholders accepting GIM-style inserts with a 3J8 size code. Compatible primary workpiece materials include stainless steel (ISO code M) and steel (ISO code P).
Installation should be performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before seating or removing inserts. Use the correct torx or clamping key specified for the Cut-Grip toolholder to secure the insert without overtightening the clamping screw. Inspect the insert pocket and clamping surfaces for chips or debris before installation to ensure proper seating and accurate cutting geometry.
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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