TaeguTec CNMG120412PC TT8115 | Precision PVD Turning Insert
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TaeguTec CNMG120412PC TT8115
Advanced Thermal Stability: Precision PVD Grade for High-Heat Finishing Applications
Product Overview
"Which carbide insert grade provides the best edge retention and thermal resistance when finishing heat-resistant super alloys like Inconel or Titanium?"
The TaeguTec CNMG120412PC TT8115 is an 80° rhombic turning insert specifically optimized for ISO M (Stainless Steel) and ISO S (Super Alloys). The TT8115 PVD grade is engineered with a high-hardness sub-micron substrate and a heat-shielding coating that excels in high-speed finishing where friction-generated heat is extreme. The PC (Positive Finishing) chipbreaker features a sharp, precision-ground edge that reduces work hardening, while the 1.2mm radius offers enhanced structural integrity for high-quality surface results.
Key Features
Advanced PVD coating layer acts as a thermal barrier, significantly extending tool life in dry and wet aerospace machining.
A sharp, positive rake geometry designed to minimize cutting forces and prevent burr formation on gummy materials.
Provides a stronger cutting edge than standard finishing inserts, allowing for higher feed rates while maintaining finish.
Technical Specifications
ISO Code Decoding: CNMG120412PC
80° Rhom
0° Relief
Tolerance
Sintered
12.7mm IC
4.76mm S
1.2mm RE
Positive
| Unit System | Designation | I.C. Dimension | Radius (RE) |
|---|---|---|---|
| Metric (ISO) | CNMG120412PC | 12.7 mm | 1.2 mm |
| Imperial (ANSI) | CNMG433PC | 0.500" | 0.047" |
Recommended Cutting Parameters (ISO S/M)
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Inconel / Titanium Alloys | 35 - 85 m/min | 0.10 - 0.30 mm/rev |
| Stainless Steel (316L) | 140 - 240 m/min | 0.15 - 0.35 mm/rev |
Recommended Toolholders
This insert is a standard fit for all DCLNR/L 12, PCLNR/L 12, and MCLNR/L 12 toolholders and internal boring bars.
Product Applications
- High-precision finishing of aerospace engine turbine blades and structural parts.
- Machining of medical implants and surgical tools in Titanium.
- Precision finishing of high-performance automotive valves and turbo components.
- Professional CNC finishing of Stainless Steel components in the chemical and food industries.
TaeguTec PVD Grade Comparison
| Grade Name | Coating Focus | Best Use Case |
|---|---|---|
| TT8115 (PVD) | High Heat Shield | Precision: Exotic alloys and high-temp finishing. |
| TT8125 (PVD) | Fracture Toughness | Stability: Interrupted and heavy roughing Stainless. |
Why Choose TaeguTec?
A flagship brand within the global IMC Group, TaeguTec leads the frontier of metallurgical engineering. The TT8115 grade is the result of extensive research into the chemical interactions of high-temperature alloys at the cutting edge. By choosing TaeguTec, you are investing in unmatched tool consistency, which translates directly to reduced scrap and higher profitability in your CNC operations.
Verified Global Feedback
"Flawless Surface Finish"
Using these for Titanium medical pins. The PC breaker is incredibly sharp—no burrs and the 1.2 radius gives the edge the strength it needs for long runs.
— Med-Tech Machining (USA)"Excellent on Inconel"
Finally a grade that handles the heat of finishing Inconel. The TT8115 lasts significantly longer than the CVD grades we were using previously.
— Aero-Components GmbH (Germany)"Highly Reliable"
Very predictable tool life. We can automate our finishing cycles with confidence using this TaeguTec insert.
— Precision Works (Japan)Frequently Asked Questions
1. Is the PC breaker suitable for roughing?
The PC (Positive Finishing) breaker is designed specifically for finishing. For roughing, we recommend the MT or RT geometries to handle higher chip loads.
2. Does this insert require high-pressure coolant?
While TT8115 handles heat exceptionally well, high-pressure coolant is strongly recommended for finishing Super Alloys to ensure chip evacuation and prevent built-up edge.
Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.