TaeguTec DNMG110408FG TT8115 | High-Speed Steel Finishing Insert
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TaeguTec DNMG110408FG TT8115
Precision Finishing at Maximum Velocity: The Industrial Standard for Steel
Product Overview
"Which insert grade is the absolute best for high-speed finishing of carbon steel components while maintaining tight tolerances?"
The TaeguTec DNMG110408FG TT8115 is a high-performance CVD-coated carbide insert, specifically optimized for high-velocity ISO P (Steel) and ISO K (Cast Iron) turning. The TT8115 grade features a specialized hard substrate paired with an advanced multi-layered coating that acts as a superior thermal barrier, allowing for significantly higher cutting speeds (Vc) than general-purpose grades. The FG (Finishing Geometry) chipbreaker utilizes a sharp cutting edge and a high-positive rake angle to ensure excellent chip evacuation at small depths of cut, preventing built-up edge and surface marring. With an 0.8mm radius, this insert provides the stability needed for continuous CNC high-output production.
Key Features
A thick Al2O3 layer provides extreme resistance to high-temperature cratering during high-speed dry or wet machining.
Optimized for finishing passes, producing superior surface Ra quality and precise chip control at low feeds.
Offers higher edge strength and stability than 0.4mm variants, ideal for demanding high-volume finishing.
Technical Specifications
ISO Code Decoding: DNMG110408FG
55° Rhom
0° Relief
Tolerance
Hole/Sint
9.525mm IC
4.76mm S
0.8mm RE
Finishing
| Unit System | Designation | I.C. Dimension | Radius |
|---|---|---|---|
| Metric (ISO) | DNMG110408FG | 9.525 mm | 0.8 mm |
| Imperial (ANSI) | DNMG332FG | 0.375" | 0.031" |
Recommended Cutting Parameters
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Carbon Steel (ISO P) | 200 - 450 m/min | 0.08 - 0.25 mm/rev |
| Cast Iron (ISO K) | 180 - 380 m/min | 0.10 - 0.25 mm/rev |
Compatible Toolholders
This DNMG 1104 series insert is optimized for standard Holders including DDJNR/L 11 and PDJNR/L 11.
Product Applications
- High-speed finishing of carbon and alloy steel automotive parts.
- Precision CNC turning of precision gears and shafts.
- Machining of gray cast iron housings where heat management is critical.
- High-output automated production requiring predictable tool life.
TaeguTec Grade Comparison Matrix
| Grade Name | Coating | Primary Strength |
|---|---|---|
| TT8115 | CVD Coated | Speed Leader: Best for high-velocity steel finishing. |
| TT8125 | CVD Coated | Balanced: Versatile toughness for general steel turning. |
Why Choose TaeguTec?
TaeguTec, a member of the IMC Group, is a global leader in metalworking innovation. The TT8115 grade represents the pinnacle of CVD coating technology, engineered specifically to handle the thermal demands of high-speed CNC turning. By combining sub-micron substrate engineering with the precision FG chipbreaker, TaeguTec ensures that your production line achieves maximum efficiency with zero compromise on surface quality. When your output requires high cutting speeds and mirror-like finishes, the DNMG 11 series with TT8115 is the industrial choice for excellence.
Global Industry Feedback
"Reliable Performance"
We pushed our Vc to 400 m/min on steel shafts and the TT8115 didn't flinch. Tool life is much longer than our previous brand.
— Manufacturing Solutions (USA)"Top Oberflächenqualität"
Perfect for finishing passes. Surface Ra is incredibly consistent. Very happy with the FG breaker geometry.
— Präzisionstechnik GmbH (Germany)"Consistency is Key"
Solid performance in high-speed cast iron turning. The 0.8mm radius provides great stability over long runs.
— Meccanica S.r.l (Italy)Frequently Asked Questions
1. Is TT8115 suitable for dry machining?
Yes, the TT8115 grade is designed with extreme heat resistance, making it an excellent choice for high-speed dry turning applications.
2. What makes the FG breaker better for finishing?
The FG geometry features a sharp edge and high-positive rake that reduces tool pressure, ensuring a mirror finish even at small depths of cut.
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.