TaeguTec DCMT070208FG CT3000 | Mirror-Finish Cermet Turning Insert
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TaeguTec DCMT070208FG CT3000
Precision Surface Mastery: High-Speed Uncoated Cermet for Elite Steel Turning
Product Overview
"Which precision insert offers the best balance between edge toughness and a mirror-like Ra finish during high-speed steel finishing?"
The TaeguTec DCMT070208FG CT3000 is an elite finishing insert designed for ISO P (Steel) and ISO K (Cast Iron). The CT3000 grade is an uncoated cermet, which utilizes TiCN-based technology to provide exceptional chemical stability and resistance to built-up edge (BUE). Unlike standard carbide, this cermet grade maintains its edge sharpness even under high thermal loads. The FG (Finishing-General) chipbreaker is meticulously ground to provide sharp shearing action, while the 0.8mm (1/32") radius adds significant edge strength, allowing for stable performance in high-feed finishing applications.
Key Features
High chemical stability minimizes material welding, ensuring a high-gloss, part-from-machine surface finish.
Engineered for light finishing, preventing long chip nesting and protecting the workpiece surface integrity.
Provides a more durable cutting edge than smaller radii, suitable for finishing with slightly higher feed rates.
Technical Specifications
ISO Code Decoding: DCMT070208FG
55° Rhom
7° Relief
Tolerance
Hole/Sint
6.35mm IC
2.38mm S
0.8mm RE
Finishing
| Unit System | Designation | I.C. Dimension | Thickness (S) |
|---|---|---|---|
| Metric (ISO) | DCMT070208FG | 6.35 mm | 2.38 mm |
| Imperial (ANSI) | DCMT21.52FG | 0.250" | 0.094" |
Recommended Cutting Parameters
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Carbon Steel | 150 - 450 m/min | 0.08 - 0.20 mm/rev |
| Alloy Steel | 120 - 350 m/min | 0.06 - 0.18 mm/rev |
Compatible Toolholders
This DCMT 0702 insert is designed for standard holders including SDJCR/L 07, SDNCN 07, and S-SDUCR/L 07 boring bars.
Product Applications
- Final high-gloss turning for automotive transmission shafts and components.
- Precision boring for small-diameter holes where Ra surface quality is paramount.
- Mirror finishing for hydraulic valves and precision engineering steel parts.
- Optimized for high-spindle speed CNC lathes and Swiss-type machines.
TaeguTec Grade Comparison (Steel Finishing)
| Grade Name | Technology | Best Outcome |
|---|---|---|
| CT3000 (Cermet) | Uncoated TiCN | Mirror Gloss: Maximum aesthetic surface quality. |
| PV3010 (Cermet) | PVD Coated Cermet | Stability: Higher resistance to wear in abrasive steel. |
Why Choose TaeguTec?
TaeguTec, as a premier member of the IMC Group, is a world pioneer in high-technology cermet materials. Our CT3000 series represents the pinnacle of surface engineering, designed for machinists who demand perfection. By eliminating the coating, we allow the razor-sharp edge of the cermet to interact directly with the workpiece, resulting in cleaner cuts and a reflective gloss that typical carbide cannot achieve. When your shop's reputation rests on micron-level precision and elite surface aesthetics, trust the technical mastery of TaeguTec.
Global Industry Feedback
"Mirror finish reached!"
Switched to CT3000 for finishing 4140 shafts. The gloss is unbelievable. No polishing needed after turning.
— Precision Dynamics (USA)"Sehr gute Standzeit"
Excellent dimensional stability. We can run 400 parts before seeing any deviation in the diameter.
— Zerspanung Profis (Germany)"Top for Swiss Lathes"
The FG chipbreaker is perfect for small parts. Very consistent chip control in light alloy steel.
— J-Tech Turning (Japan)Frequently Asked Questions
1. Should I use coolant with cermet inserts?
Cermet can be used dry or wet. For the best mirror finish and to prevent thermal cracking, high-pressure continuous coolant or MQL is recommended.
2. Can I use the 0.8mm radius for small internal boring?
The 0.8mm radius is strong, but ensure your boring bar clearance is sufficient. For very small bores, the 0.4mm or 0.2mm version may be preferred to avoid vibration.
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.