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Kyocera CNMG120408CQ CJ225P
Optimize finishing and general steel turning with Kyocera CNMG120408CQ CJ225P. A 95° rhombic (80°-type) insert, universal grade CJ225P, suited for steels and forgings—delivers reliable performance, reduced downtime, and excellent surface finish.
“Finish steel and forging parts with one universal insert—maximise uptime, minimise changeovers.”
The Kyocera CNMG120408CQ CJ225P is a universal negative-rake turning insert designed to deliver consistent performance across steel and forging applications. With its 80° rhombic CNMG geometry, this insert offers excellent edge strength and four usable cutting edges, making it a cost-effective choice for production machining.
The CJ225P grade is Kyocera’s versatile P-class solution, engineered with a tough carbide substrate and a durable PVD coating that enhances wear resistance, minimizes built-up edge, and improves surface quality. The golden-coated finish provides reduced friction, ensuring smooth chip flow and stable performance even at finishing-level feeds and speeds.
Equipped with the CQ chipbreaker, this insert provides controlled chip evacuation and stable cutting in light to medium-duty operations. Its optimized design allows machinists to achieve excellent surface finishes, lower cycle times, and fewer tool changes, resulting in higher productivity and reduced machining costs.
🔑 Key Features & Specs
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Geometry:
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ISO Code: CNMG120408CQ
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Rhombic shape (~95° diamond), negative rake design
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Two-sided cutting – four edges per insert
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Available in corner radii: 0.4 mm (120404) and 0.8 mm (120408) versions Jaibros
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Grade: CJ225P
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Universal grade from Kyocera
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Ideal for finishing steels and forging materials Jaibros
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Coating / Finish:
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Golden PVD-like finish (typical of universal-grade coated inserts) offering wear protection and reduced friction TradeIndia
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Applications:
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Finishing or light-to-general turning of steel (ISO P) and forging materials
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Multi-material universal use — reduces insert inventory complexity Jaibros
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Why It’s a Best Seller
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Less Downtime: The universal CJ225P grade covers multiple materials—less frequent insert swaps, simplified inventory.
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Excellent Surface Finish: Sharp edges and optimized geometry ensure tight finishes, reducing rework.
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Good Wear Resistance: Coated universal grade holds up well under finishing–level speeds on steels and forgings.
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Cost-Effective: Four cutting edges deliver high cost-per-edge value.
🏭 Application Industries
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Automotive: crankshafts, gears, forged components.
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General Engineering: turning operations on steel parts.
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Fabrication & Forgings: reliable finishing of forged steel products.
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Maintenance Shops & Workshops: suited for varied jobs with fewer insert types needed.
📞 Order Now
Want to simplify your tooling and improve productivity with Kyocera CNMG120408CQ CJ225P?
DM, WhatsApp, or Call CNC Tools Depot now for stock availability, pricing, or bulk deals.
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Frequently Asked Questions
It’s a universal grade optimized for steel and forging materials, delivering consistent finishing performance.
Two main variants: 0.4 mm (120404) for finer finishes and 0.8 mm (120408) for stronger edge support.
Yes, it appears with a golden PVD-style finish, giving added wear resistance and reduced friction on steel turning.
It’s primarily intended for finishing and general turning. While robust, heavy roughing might require inserts with more robust chipbreakers or specialized grades.
You get a single insert that handles multiple materials (steel, forgings) well—reducing tooling inventory, simplifying selection, and lowering overall costs.
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