TaeguTec DNMG150408FG CT3000 | Mirror-Finish Cermet Turning Insert
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TaeguTec DNMG150408FG CT3000
The Industrial Standard for High-Speed Mirror Finishing & Precision
Product Overview
"Which cermet grade is best for high-speed finishing of carbon steel while maintaining a mirror-like surface and strict dimensional tolerances?"
The TaeguTec DNMG150408FG CT3000 is an elite uncoated Cermet insert optimized for precision finishing of ISO P (Steel). The CT3000 grade is a titanium-based ceramic-metallic composite that provides a lower chemical affinity with steel compared to carbide, virtually eliminating workpiece adhesion and built-up edge. The FG (Finishing Geometry) chipbreaker is specifically engineered for light depths of cut, utilizing a sharp cutting edge and positive rake to facilitate smooth chip evacuation. With a 0.8mm corner radius, this insert offers increased edge stability for continuous finishing passes, ensuring an exceptional surface Ra finish.
Key Features
A specialized uncoated grade that resists oxidation and maintains a sharp edge, resulting in superior surface gloss.
Designed for finishing loads, it reduces friction and cutting temperature, protecting the workpiece surface.
The chemical stability of Cermet ensures that tool wear is predictable, keeping your parts within tolerance over longer runs.
Technical Specifications
ISO Code Decoding: DNMG150408FG
55° Rhom
0° Relief
Tolerance
Hole/Sint
12.7mm IC
4.76mm S
0.8mm RE
Finish G.
| Unit System | Designation | I.C. Dimension | Radius |
|---|---|---|---|
| Metric (ISO) | DNMG150408FG | 12.7 mm | 0.8 mm |
| Imperial (ANSI) | DNMG432FG | 0.500" | 0.031" |
Recommended Cutting Parameters
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Carbon Steel (ISO P) | 150 - 350 m/min | 0.08 - 0.25 mm/rev |
| Alloy Steel (ISO P) | 120 - 280 m/min | 0.08 - 0.20 mm/rev |
Compatible Toolholders
This DNMG 1504 series insert is designed for standard Holders and Boring Bars including DDJNR/L 15 and PDJNR/L 15.
Product Applications
- High-gloss finishing on carbon and alloy steel components.
- Precision CNC turning of precision shafts, gears, and bearing seats.
- Machining of sintered steel parts where edge sharpness is vital.
- Final pass operations aimed at eliminating secondary grinding or polishing.
TaeguTec Grade Benchmarking
| Grade Name | Type | Primary Application |
|---|---|---|
| CT3000 | Uncoated Cermet | The Perfectionist: Mirror finish for steel. |
| PV3010 | PVD Coated Cermet | The Durable: Tougher finishing in alloy steel. |
Why Choose TaeguTec?
As a global leader in metalworking solutions, TaeguTec represents the pinnacle of tool engineering. The CT3000 Cermet grade is specifically formulated to bridge the gap between carbide and grinding, offering CNC operators the ability to produce parts with reflective finishes directly from the lathe. By utilizing advanced titanium-based compounds and the precision-ground FG chipbreaker, TaeguTec ensures your high-speed finishing operations are efficient, stable, and aesthetically perfect. When your project demands the ultimate surface quality, trust TaeguTec CT3000.
Global Industry Feedback
"Eliminated Polishing"
Replaced our standard finishing insert with CT3000. We no longer need secondary polishing on our steel pins. Ra is amazing.
— CNC Solutions (USA)"Exzellenter Glanz"
Fantastic performance on C45 steel. The mirror finish is consistent across every batch. Highly recommended.
— Präzisionstechnik GmbH (Germany)"Very Sharp Edge"
The cermet stays sharp and cool even at high RPMs. Much better surface than our previous carbide inserts.
— Meccanica di Precisione (Italy)Frequently Asked Questions
1. Why is Cermet better than Carbide for mirror finishes?
Cermet (CT3000) has lower chemical affinity with iron, meaning the steel won't "stick" to the edge. This prevents tearing and produces a smoother finish.
2. Can I use coolant with this cermet insert?
Yes, but ensure it is continuous. Thermal shock from intermittent coolant can cause micro-cracking in cermet. Dry machining is also highly effective.
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.