TaeguTec DNMG150608-MT TT8115 | Heavy-Duty High-Speed Steel Turning Insert
Price shown is a starting point. Contact us for a precise quote based on your requirements.
TaeguTec DNMG150608-MT TT8115
Increased Thickness & Thermal Resistance for High-Velocity Steel Production
Product Overview
"Which insert grade provides maximum thermal stability and vibration resistance during heavy-duty turning of alloy steel?"
The TaeguTec DNMG150608-MT TT8115 is a high-rigidity CVD-coated carbide insert, specifically engineered for ISO P (Steel) and ISO K (Cast Iron). By utilizing the 1506 series (6.35mm thickness), this insert offers a larger thermal sink to dissipate heat generated during high-speed continuous cuts. The TT8115 grade features a thick Alumina (Al2O3) coating that resists crater wear at extreme temperatures. Combined with the MT (Medium Turning) chipbreaker, it delivers exceptional chip control and edge strength, making it the ideal choice for automated CNC workshops requiring consistent precision and long tool life.
Key Features
The 6.35mm profile provides superior vibration dampening and mechanical strength for deep cuts.
Thick CVD coating technology allows for cutting speeds (Vc) up to 450 m/min in carbon steels.
A balanced geometry that ensures smooth chip evacuation while protecting the 0.8mm cutting edge.
Technical Specifications
ISO Code Decoding: DNMG150608-MT
55° Rhom
0° Relief
Tolerance
Hole/Sint
12.7mm IC
6.35mm S
0.8mm RE
Medium
| Unit System | Designation | Thickness (S) | Radius (RE) |
|---|---|---|---|
| Metric (ISO) | DNMG150608-MT | 6.35 mm | 0.8 mm |
| Imperial (ANSI) | DNMG442-MT | 0.250" | 0.031" |
Recommended Cutting Parameters
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Carbon Steel (ISO P) | 200 - 450 m/min | 0.15 - 0.50 mm/rev |
| Alloy Steel (ISO P) | 150 - 400 m/min | 0.15 - 0.45 mm/rev |
Compatible Toolholders
This heavy-duty 1506 series insert fits standard Holders such as DDJNR/L 15 and PDJNR/L 15.
Product Applications
- High-speed turning of automotive transmission parts and axles.
- Machining of large alloy steel shafts and industrial components.
- Heavy turning of gray cast iron engine blocks and housings.
- Precision CNC mass production where thermal stability is critical.
TaeguTec Grade Benchmarking
| Grade Name | Type | Primary Application |
|---|---|---|
| TT8115 | CVD Al2O3 | Elite Speed: Maximum thermal barrier for finishing/medium turning. |
| TT8125 | CVD TiCN | General Purpose: Best for standard steels and medium speeds. |
Why Choose TaeguTec?
TaeguTec is a world leader in advanced carbide development, and the TT8115 grade is the pinnacle of thermal management in CNC turning. By combining a high-toughness sub-micron substrate with an advanced CVD coating matrix, TaeguTec ensures the DNMG 150608-MT maintains a sharp, stable edge even under extreme high-speed conditions. The added thickness of the 1506 series provides the extra security needed for high-output environments, reducing edge chipping and increasing the reliability of your automated processes. Trust TaeguTec for precision that pays.
Verified Industry Feedback
"Thermal Stability is Key"
We increased our speed to 420 m/min in 4140 alloy steel. The 1506 thickness definitely helps with vibration during deep cuts.
— Precision Machining Group (USA)"Perfekt für hohe Geschwindigkeiten"
Outstanding life in steel finishing. The TT8115 grade handles the heat without any cratering. Excellent Ra values.
— Fertigungstechnik Schmidt (Germany)"Consistency matters"
Very stable performance in mass production. We get consistent tool life across all corners, which is vital for our automation.
— Meccanica S.r.l (Italy)Frequently Asked Questions
1. Is the 1506 (6.35mm) compatible with my 1504 holder?
Standard holders are often designed for specific thicknesses. Please ensure your toolholder shim/seat is compatible with the 6.35mm thickness (06 series) for proper clamping.
2. Why use TT8115 over TT8125?
TT8115 is optimized for high-speed continuous cuts where heat is the primary failure mode. TT8125 is better for interrupted cuts or standard speeds where toughness is more critical.
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.