10pc Kyocera CNGA120408S01525 A66N – Ceramic Turning Insert (High-Speed Machining of Cast Iron)
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Kyocera CNGA120408S01525 A66N – Ceramic Turning Insert (10 pcs High-Speed Machining of Cast Iron)
The Kyocera CNGA120408S01525 A66N is a negative-type ceramic turning insert designed for high-speed machining of cast iron. Made from silicon nitride (Si₃N₄) ceramic, the A66N grade offers outstanding wear resistance, superior thermal shock stability, and exceptional oxidation resistance, making it ideal for dry cutting applications. Its advanced micrograin structure enables stable cutting at elevated speeds while maintaining excellent edge integrity and consistent surface quality on both gray and ductile cast iron.
Key Features & Benefits
- A66N Grade: Silicon nitride ceramic optimized for high-speed cast iron machining with excellent toughness and wear resistance.
- High-Speed Capability: Stable cutting up to 1200 m/min under dry conditions, ideal for mass-production environments.
- Thermal & Oxidation Stability: Maintains hardness and surface integrity even at high operating temperatures.
- Superior Surface Finish: Ensures smooth cutting and reduced friction at elevated speeds.
- Designed for Dry Machining: Eliminates coolant usage while delivering excellent chip evacuation and tool longevity.
Technical Specifications
- Designation / Order Code: CNGA120408S01525 A66N
- Insert Type: Negative, 80° Rhombic Ceramic Insert
- Material: Silicon Nitride (Si₃N₄) Ceramic
- Grade: A66N (High-Speed Cast Iron Machining)
- Application: Finishing to roughing of gray and nodular cast iron
- Inscribed Circle (IC): 12.70 mm
- Thickness: 4.76 mm
- Hole Diameter: 5.16 mm
- Corner Radius (RE): 0.8 mm
- Relief Angle: 0° (Negative Type)
- Cutting Speed (Vc): 600 – 1200 m/min (dry)
- Feed Rate (f): 0.10 – 0.35 mm/rev
- Depth of Cut (ap): 0.2 – 3.0 mm
- Pack Quantity: 10 pcs
About Kyocera A66N:
Kyocera’s A66N series represents the latest advancement in ceramic cutting technology. Utilizing a high-toughness silicon nitride formulation and advanced sintering process, it delivers exceptional performance in high-speed cast iron machining. A66N ensures stable cutting, reduced cycle time, and extended tool life under extreme heat and stress conditions.