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Kyocera TNGA160408T02025 A65
TNGA 160408 A65 – 60° triangular ceramic turning insert (IC 9.52 mm, S 4.76 mm, rε 0.8 mm) in Grade A65– ideal for semi-roughing to finishing of hardened steel and cast iron. Achieve faster cutting, reduced cost-per-component & excellent surface finish. Available at CNC Tools Depot India.
Upgrade your machining performance with the TNGA 160408 A65, a premium ceramic turning insert designed for demanding applications on hardened steel and cast iron. This negative 60° triangular insert features an inscribed circle (IC) of 9.52 mm and thickness (S) of 4.76 mm with a 0.8 mm nose radius (rε) – geometry that gives you strong edge support and good chip control.
The grade A65 (Al₂O₃+TiC ceramic substrate) offers very high hardness and elevated thermal resistance, making it ideal for high speed and semi-finishing operations of steel, cast iron and hardened materials (typically 38–64 HRC). Because ceramic inserts like this don’t rely on traditional coatings, they excel when you push cutting speed, reduce cycle time and want longer tool-life in challenging materials.
Key Features & Specifications:
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Geometry: Negative 60° triangle, double-sided insert.
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IC: 9.52 mm (ISO “160” series) – so size 160408.
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Thickness (S): 4.76 mm.
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Nose radius: rε 0.8 mm (corresponds to the “408” last digits)
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Grade: A65 ceramic (Al₂O₃+TiC) – optimized for semi-roughing to finishing on steel/hardened/cast iron.
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Applications: Turning operations (especially external turning) – machining of cast iron, hardened steel, general engineering materials.
Why It’s a Best Seller:
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Longer tool life: The ceramic substrate and optimized grade mean less wear, fewer insert changes and therefore reduced downtime.
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Higher productivity: Allows higher cutting speeds (especially on hardened steels/cast iron) so you get more parts per shift.
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Lower cost-per-component: Fewer tool changes + longer edge life = lower tooling cost per part.
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Better surface finish & accuracy: Ceramic inserts maintain sharp edges at high temperatures, giving improved finishes without frequent re-grinds or insert swaps.
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Reliability in demanding materials: When machining 38–64 HRC or heavy interruption cast iron, many standard carbide inserts fail — the A65 ceramic is built for that.
Application Industries:
Ideal for automotive (gear housings, cam-shafts, hardened transmissions), aerospace (hardened landing gear or structural components), die & mould (hardened tooling steel), and general engineering (machining hardened steel, cast iron machine frames, heavy fabrication).
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Frequently Asked Questions
It’s optimized for hardened steels (approx. 38–64 HRC) and cast irons (including grey or nodular) in semi-roughing to finishing. Ceramic substrate means you can run faster and get longer life.
While primarily designed for turning (external turning with negative triangular geometry), in some applications it may be used in light milling with suitable holder and clamping. But the major benefit is in turning hardened/higher-speed applications.
Look for the size code “160408” – IC 9.52 mm (160), thickness 4.76 mm (04), nose radius 0.8 mm (08). And ensure the grade is A65 (ceramic Al₂O₃+TiC).
The A65 ceramic grade provides high hardness and thermal resistance, enabling higher cutting speeds, less edge wear, longer tool life and lower cost per part especially when machining hardened steels or cast iron where carbides suffer fast wear.
Specify the insert code TNGA 160408 A65. Ask for the appropriate negative triangular (60°) turning holder compatible with IC 9.52 mm size and confirm the pocket is suited for ceramic insert (good clamp and face support). Mention your material (e.g., cast iron, hardened steel) and depth/feed, so they can recommend suitable chipbreaker or edge prep if needed.
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