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Kyocera TNMG 160408 MS PR1535
Unlock superior tool life and surface finish with TNMG 160408 MS PR1535 — ideal for turning stainless steel, high temperature alloys, and interrupted cuts. A best-seller for its durability, reliability, and performance.
🚀 Tool Life That Pays You Back – Up to 5× Longer in Stainless!
Looking for inserts that last longer, reduce your machine downtime, and bring down cost per component? Meet TNMG 160408 MS PR1535 — your next productivity boost.
Key Features & Specifications:
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Geometry & Chipbreaker: Triangular negative insert (TNMG) with MS chipbreaker optimized for medium / severe interrupted cuts.
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Grade & Coating: PR1535 (PVD / CVD hybrid from Kyocera) engineered for high wear resistance, especially in stainless and heat‐resistant alloys. According to Kyocera’s catalog, PR1535 excels under interrupted cutting and resists “sudden fracture” in thermal loads.
Dimensions: 1604 × 08 form — typical inscribed circle 9.525 mm, thickness 4.76 mm, corner radius ~0.8 mm (08) — robust for depth of cut swings. -
Applications: Best for turning, especially in internal/external turning setups, face turning with interruptions; applicable also in light milling or grooving when setup allows stable negative geometry.
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Materials: Highly suited for stainless steel, heat resistant alloys, titanium alloys and HRSA workpieces. (Kyocera data explicitly calls out this strength)
Why It’s a Best Seller:
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Lower downtime & fewer index changes — push performance further before indexing.
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Superior surface finish — MS chipbreaker ensures smoother chips and stable cutting even in challenging materials.
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High thermal / wear resistance — PR1535 holds up in elevated heat zones, making it more forgiving during “hot” turning.
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Resists catastrophic failure — especially under interrupted cuts, helps avoid sudden insert breakage.
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Versatility across part runs — from short to moderate lot sizes, it performs reliably.
Application Industries:
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Automotive (exhausts, shafts, turbo parts)
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Aerospace (heat-resistant alloys, high temp components)
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Die & Mould (stainless mould steel, high alloy tool steels)
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General Engineering / Stainless Fabrication (valves, pump shafts, etc.)
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Frequently Asked Questions
The MS chipbreaker is designed for medium to severe interrupted cuts — it helps manage chip flow and reduce cutting forces, especially in stainless, HRSA, and titanium materials. It also helps prevent sudden insert fracture under unstable cutting.
It’s a “hybrid” grade that balances wear resistance and toughness. While it performs well for finishing and semi-finishing in stainless and high temp alloys, it also tolerates moderate roughing with intermittent cuts.
Yes, but its strength is most evident in stainless and heat-resistant alloys. For softer steels or cast iron, you may get better cost-per-edge by using P-grades optimized for those materials, though PR1535 will still hold up.
Sudden fracture typically arises from thermal stress, edge chipping, or interrupted loads. Kyocera’s literature states PR1535 helps reduce sudden fracturing — the coating and substrate are tuned for stability under thermal cycling and shock
It depends on machine rigidity, coolant, and material, but typical regimes for stainless/HRSA might be in the range of moderate speeds with lighter depth and stable feed — always validate parameters experimentally. Use manufacturer or your tooling tech’s recommended ranges as starting point and tune from there.
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