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Kyocera TNGA160408S01525 A66N
The Kyocera TNGA160408S01525 A66N is a negative triangle turning insert with S01525 chipbreaker & PVD-coated ceramic grade (Al₂O₃+TiC + TiN). Excellent wear resistance and surface finish for turning hardened steels & cast iron. Ideal for users needing lower cost per component, reduced downtime and better productivity.
Maximize tool life & minimize machining cost per part
The Kyocera TNGA160408S01525-A66N turning insert delivers exceptional durability and performance thanks to its advanced ceramic substrate (Al₂O₃ + TiC) with a TiN PVD coating. Its negative triangle shape (TNGA) combined with the S01525 chipbreaker and an 0.8 mm corner radius makes it ideal for turning operations—especially on hardened steel & cast iron where heat and wear are major challenges.
Key Features
Key Features & Specs
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Geometry: Negative triangle (TNGA) insert; 60° included angle.
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Chipbreaker: S01525 – optimized for controlled chip breaking in rough to semi-finish turning.
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Corner Radius: 0.8 mm for robustness & consistent performance on interrupted cuts.
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Grade / Coating: Grade A66N — a ceramic substrate (Al₂O₃ + TiC) with TiN coating. High hardness, elevated temperature stability, plus better oxidation resistance
Applications: Turning hardened materials, cast iron workpieces; especially for operations with light to moderate interruption or finishing/semifinishing in hard steels & alloyed materials.
Why It’s a Best Seller:
Why It’s a Best-Seller
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Longer tool life – A66N handles high temperatures and resists wear better than many conventional ceramic or coated carbide inserts, meaning more parts per edge.
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Reduced downtime – Less frequent insert changes; stable machining especially under difficult materials.
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Improved surface finish – The S01525 chipbreaker + good edge prep deliver smoother finishes even in tougher work materials, lowering rework.
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Cost per component drops – More productivity per insert, higher stability under harsh turning, fewer rejects.
Application
Application Industries
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Automotive – hardened shafts, gears, transmission housing turning
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Aerospace – components with high hardness, work-holding surfaces
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Die & Mold – tool steels, pre-hardened mold components
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General Engineering – cast iron parts, hardened steel, rolls, shafts
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Frequently Asked Questions
It excels in turning hardened steels and cast iron. It is especially useful where high temperature, abrasion and oxidation wear are concerns.
Yes. Its negative triangle geometry + robust 0.8 mm corner radius give good strength. For heavy interruption, ensure proper machine rigidity and cutting parameters.
Definitely. The TiN provides better oxidation resistance and helps maintain edge integrity at elevated temperatures. Combined with the ceramic substrate, it boosts life under tough conditions.
With correct feeds/speeds, finish can be very good — the chipbreaker S01525 aids in clean chip flow, reducing vibration and chatter, leading to smoother surfaces.
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While exact life depends on material & cutting conditions, users report significantly fewer changes—often up to 2-3× life compared to standard carbide in similar hardened steel or cast iron turning.
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