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Kyocera CNGA120408T02025 A65
Kyocera CNGA120408T02025 A65 is an 80° diamond (CNGA) negative ceramic turning insert (A65 grade) optimized for high-speed turning of steels, cast irons, and hardened materials. Known for superior wear resistance, long life, and fine surface finish at high cutting speeds.
Experience the next level of precision turning with Kyocera CNGA120408T02025 A65 — the high-performance ceramic insert engineered for demanding, high-speed machining environments. Designed with Kyocera’s proven ceramic technology, this insert ensures consistent quality, long tool life, and excellent wear resistance in steel and cast iron machining.
Hook / Attention Line
Cut faster, last longer — slash your cost per part with the Kyocera CNGA120408T02025 A65 insert.
Key Features & Specs
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Geometry: 80° diamond style (CNGA), negative rake.
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Chipbreaker: T02025 style (optimized chip control)
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Grade / Coating: A65 ceramic (Al₂O₃ + TiC), uncoated (or lightly treated)
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Cutting application: External & internal turning (OD/ID) of steels, cast irons, and hardened materials.
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Excellent at high cutting speeds & high thermal stability (ceramic retains hardness at elevated temperature)
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Recommended for finishing to semi-roughing operations under continuous to light interruption conditions.
Why It’s a Best Seller
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High wear resistance: The A65 ceramic formulation resists abrasive wear even under high speed and temperature, so the insert retains edge sharpness longer.
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Longer tool life, less downtime: Less frequent index changes — meaning fewer stoppages, less tool-handling time, and smoother production runs.
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Superior surface finish: The ceramic’s low affinity to the workpiece helps produce fine finishes with minimal built-up edge.
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Better cost per component: Although ceramic inserts are premium, the extended life and reduced downtime often translate to a lower effective cost per part.
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Proven reliability: This insert is stocked and trusted in many high-volume turning shops and is often a go-to choice for demanding turning jobs.
🏭 Application Industries
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Automotive components (shafts, journals, gears)
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Aerospace (forging, high-strength steels)
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Die & Mold (hardened steels, fine finishes)
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General engineering / heavy fabrication
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Hard machining / finishing (e.g. steels > 38 HRC)
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Frequently Asked Questions
It excels in machining steels, cast irons, and even moderately hardened materials, especially under high speed and continuous turning. The ceramic chemistry (Al₂O₃ + TiC) gives it good wear resistance in those conditions.
Ceramic inserts like A65 are better suited for continuous or light interruption conditions. Heavy interruptions or shock loads may risk chipping. For roughing with severe interruptions, other tougher grades or coated carbides may be more reliable.
While results vary by job, users often see 2–4× or more tool life under high-speed turning conditions, thanks to ceramic’s resistance to high temperatures and abrasive wear. Less frequent index changes = more uptime.
Ceramic inserts like A65 are often run dry or with minimal coolant. Excess coolant can cause thermal shock. However, mild cooling or air blow-off is acceptable depending on machine setup and temperature control.
These inserts typically come in boxes of 10 pieces each. For larger orders or bulk needs, contact us directly — we offer volume discounts, priority stock allocation, and express delivery within India.
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