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Kyocera TPMT110304HQ TN60
The Kyocera TPMT110304HQ TN60 is a 60° triangular, neutral-hand, positive rake cermet insert designed for medium finishing operations in steel and stainless steel. Delivers long tool life, fine surface finishes, and cost-effective machining. Ideal for turning applications.
The Kyocera TPMT110304HQ TN60 insert is engineered for machinists who demand both precision and durability. Featuring a 60° triangle geometry with ~3.18 mm thickness, ~6.35 mm inscribed circle, and a fine corner radius (≈ 0.40 mm), it’s tailored for finishing cuts. The TN60 cermet grade provides superior wear resistance combined with toughness—especially in steel & stainless steel operations. It offers reduced downtime and consistent surface finish, making it a go-to for automotive, aerospace, die & mold, and general engineering sectors. At CNC Tools Depot, we stock this proven best seller—DM, WhatsApp or call to check current stock, pricing, and bulk order discounts.
✅ Key Features & Specs
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Geometry: TPMT-110304HQ — 60° triangular insert, neutral (N) hand, positive rake, 3 usable corners.
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Thickness / Size / Radius: Approx. 3.18 mm thickness, inscribed circle ~ 6.35 mm, corner radius ~ 0.40 mm for fine finishing edges.
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Grade / Material: TN60 cermet from Kyocera — built for steel & stainless steel finishing.
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Coating / Surface Treatment: As per TN60 spec — it’s a cermet (ceramic‐metal composite) grade, combining wear resistance with toughness; excellent for finishing cuts.
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Cutting Applications: Ideal for turning (OD/ID), medium finishing operations, especially when you want a smooth surface, tight tolerances. Works well on steel and stainless stee
💡 Why It’s a Best Seller
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Less downtime: Fewer insert changes thanks to high wear resistance of TN60.
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Better surface finish: The 0.40 mm corner radius + positive rake geometry gives finer finishes versus coarse geometry inserts.
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Stable performance across batches: Reliable material grade means consistency in finish, tool life, chip control.
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Cost efficiency: Even though initial cost may be higher than basic inserts, lifecycle cost per part is much lower—less scrap, fewer rejects.
🏭 Application Industries
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Automotive – for finishing shafts, liners, manifolds
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Aerospace – where precision and surface finish matter
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Die & Mold – components needing mirror or near‐mirror finishes
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General Engineering – especially job shops turning steels & stainless steels
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Frequently Asked Questions
It’s optimized for steel and stainless steel finishing operations; providing excellent wear resistance and toughness in those materials.
The corner radius is about 0.40 mm, which helps give smoother surface finishes and reduces stress concentration at the cutting edge—ideal in finishing to avoid chatter or tear-out.
Three usable cutting corners per insert, since it’s a 60° triangle. When one side wears, you can rotate to use the next corner.
It’s primarily designed for finishing / medium finishing due to its geometry and TN60 grade. Roughing heavy cuts would stress the fine edge more rapidly. If you need roughing, you may consider more robust insert geometry or different grade.
By combining long tool life (fewer changeovers), better surface finishes (less rework), and consistent performance (less scrap), the cost per component drops. Although TN60 inserts may cost more upfront than some basic carbide grades, for finishing steel/stainless in production this pays off.
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