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Tungaloy TNMG160408-TM T9125
Unleash consistent performance with the Tungaloy TNMG160408-TM T9125 turning insert: 60° triangular geometry, T9125 CVD coating, optimized for high-speed steel turning. Enjoy reduced downtime, excellent chip control, and longer tool life.
“Run hotter and turn faster—without sacrificing tool life.”
Unleash true turning power with the Tungaloy TNMG160408-TM T9125 insert, designed for tough steel machining. Backed by Tungaloy’s T9200 CVD grade technology, this insert delivers exceptional wear resistance, crater protection, and longer uptime, whether you’re doing finishing or medium-depth cuts.
🔑 Key Features & Specs
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Geometry:
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ISO Code: TNMG160408-TM (also TNMG332-TM in ANSI)
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Shape: 60° triangular negative
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Inscribed Circle (IC): 9.52 mm
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Thickness: 4.76 mm
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Corner Radius (RE): 0.8 mm
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Chipbreaker: TM (chamfered cutting edge) on both sides
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Rake Angle: ~20°
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Face Land Width: ~0.2 mm
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Grade & Coating:
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Grade: T9125 — part of Tungaloy’s premium T9200 CVD series
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Coating: CVD Al₂O₃ over TiCN layers on a specially engineered substrate
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Designed for High-Temperature Steel Turning, especially ISO P20-P30 class steels
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Applications:
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External and internal turning of steels
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Finishing and medium-depth cutting operations
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Both continuous and interrupted cuts (depending on rigidity)
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Why It’s a Best Seller
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Long Tool Life: CVD Al₂O₃ coating provides robust protection against flank and crater wear at elevated cutting speeds. Less frequent insert changes keep your machines running longer.
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Stable Performance: TM chipbreaker ensures consistent chip control, minimizing edge chipping and maintaining surface finish quality over extended runs.
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High Wear & Heat Resistance: T9200 series excels in steel turning with heat resistance — perfect for shops pushing higher spindle speeds.
🏭 Application Industries
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Automotive – shafts, housings, and crank components in steels
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General Engineering – batch parts, brackets, shafts in steel
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Die & Mold – pre-machining steels for molds/housings
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Fabrication & Heavy Machinery – turning steel components with consistent tool life
📞 Order Now
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Frequently Asked Questions
It’s designed for ISO P20-P30 steels — mild to medium alloy steels — offering excellent wear resistance in high-speed turning.
T9125 features a multi-layer CVD coating with thick Al₂O₃, optimized for heat resistance and crater wear protection at elevated speeds.
The TM chipbreaker provides controlled, uniform chip formation, reducing risk of chattering, improving safety, and ensuring smoother surface finish.
Yes — its robust substrate and coating give it good toughness. It’s best in finishing to medium-depth cuts, but with proper toolholder stability it handles interruptions well.
TNMG160408-TM T9125 is specified as "without coolant supply" from the manufacturer, meaning it performs well under dry or minimal-coolant conditions.
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