TaeguTec DCMT11T308MT TT8115 | CVD Carbide Insert for Steel
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TaeguTec DCMT11T308MT TT8115
High-Speed CVD Gold Grade: Optimized for Steel and Cast Iron Excellence
Product Overview
"Which insert grade offers the best tool life and surface gloss for high-speed turning in alloy steels and gray iron?"
The TaeguTec DCMT11T304MT TT8115 is a premier choice for ISO P (Steel) and ISO K (Cast Iron) machining. The TT8115 grade is a "Gold Grade" CVD-coated carbide that excels in high-temperature environments, resisting chemical wear at elevated speeds. The MT (Medium-Turning) chipbreaker is engineered to be a versatile powerhouse, providing enough edge strength for semi-finishing while maintaining the sharpness required for finishing. With its 0.8mm corner radius, this insert offers increased edge robustness and better heat dissipation, making it ideal for stable, high-efficiency production cycles.
Key Features
A specialized multi-layer CVD coating that maximizes resistance to flank and crater wear in continuous high-speed cuts.
Optimized for medium-duty applications, ensuring stable chip fragmentation across varying depths of cut and feed rates.
The 0.8mm radius provides a stronger cutting edge compared to smaller radii, allowing for higher feed rates and improved tool longevity.
Technical Specifications
ISO Code Decoding: DCMT11T308MT
55° Rhom
7° Relief
Tolerance
Hole/Sint
9.525mm IC
3.97mm S
0.8mm RE
Med-Turn
| Unit System | Designation | I.C. Dimension | Thickness (S) |
|---|---|---|---|
| Metric (ISO) | DCMT11T308MT | 9.525 mm | 3.97 mm |
| Imperial (ANSI) | DCMT3(2.5)2MT | 0.375" | 0.156" |
Recommended Cutting Parameters
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Steel Alloys (ISO P) | 180 - 450 m/min | 0.10 - 0.30 mm/rev |
| Cast Iron (ISO K) | 150 - 400 m/min | 0.10 - 0.28 mm/rev |
Compatible Toolholders
This DCMT 11T3 insert is standard for precision external and internal holders including:
Product Applications
- High-speed finishing of automotive components in carbon and alloy steel.
- Precision turning of mechanical shafts and transmission gears.
- Semi-finishing of cast iron motor housings and pump casings.
- Ideal for high-volume automated CNC production requiring dimensional stability.
TaeguTec Grade Comparison Benchmark
| Grade Name | Technology | Best Result |
|---|---|---|
| TT8115 (Gold) | CVD Coated | Speed King: Maximum productivity in continuous cuts. |
| TT8125 (Gold) | CVD Coated | General Purpose: Balanced for all steel types. |
Why Choose TaeguTec?
TaeguTec, a member of the IMC Group, is a global leader in providing industrial-grade cutting solutions. The TT8115 series represents the pinnacle of high-speed turning technology. By combining advanced multi-layer CVD coatings with precision-ground substrates, TaeguTec ensures that your machining processes achieve the highest surface quality with fewer tool changes. When production uptime and part aesthetics are critical to your success, the TaeguTec DCMT 11T3 series is the professional's choice for guaranteed excellence.
Global Industry Feedback
"Reliable and Fast"
Using the TT8115 on our 1045 steel production line. We were able to push speeds to 400 m/min with excellent tool life.
— Precision Engineering (USA)"Top Oberflächenqualität"
The MT chipbreaker is incredibly stable. Our cast iron components come out with a mirror finish every time.
— Maschinenbau Müller (Germany)"Solid Performer"
Very consistent performance batch to batch. The 0.8mm radius is perfect for semi-finishing passes.
— Meccanica di Precisione (Italy)Frequently Asked Questions
1. Is the TT8115 suitable for interrupted cuts?
TT8115 is optimized for high-speed continuous machining. For heavy interrupted cuts, we recommend a tougher grade like TT8125.
2. Can I use this for Stainless Steel?
While it can handle some stainless, TaeguTec TT9080 PVD grade is the primary choice for Stainless Steel (ISO M).
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.