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The SANDVIK COROMANT 6427364 is a solid carbide cutoff insert designed for parting and grooving operations on CNC lathes and turning centers. Part of the CoroCut QD series, this insert features a 2.5 mm cutting width, a neutral lead angle, and a CM chipbreaker geometry that promotes controlled chip evacuation during deep grooving and cutoff work. The insert is finished with a PVD-applied TiAlN and AlCr2O3 coating for wear resistance and thermal stability. With a 7-degree relief angle and a 0.20 mm corner radius, it is suited for precision cutoff applications where dimensional accuracy and insert life are critical. Machinists and CNC operators in production shops install this insert into compatible CoroCut QD toolholders.
This insert is used in industrial metal-cutting environments including production machining, job shops, and aerospace or automotive component manufacturing. It is sized for the QD insert seat size F and held in place by a clamp-style holding method. The overall insert length is 0.3937 inches (10.00 mm), and the cutting width of 0.0984 inches (2.50 mm) makes it appropriate for moderate-width parting and recessing cuts. The manufacturer catalog number for this insert is QD-NF-0250-0002-CM 1145, grade 1145.
Designed for use with CoroCut QD series toolholders accepting insert seat size F. Confirm toolholder seat size and clamping system compatibility before installation.
This insert is installed by qualified machinists or CNC setup technicians. Power down and lock out the machine before changing inserts. Use appropriate insert seating tools to avoid damaging the carbide or the toolholder pocket. Handle solid carbide inserts carefully to prevent chipping on cutting edges prior to use.
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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