TaeguTec DCMT070204FG CT3000 | Mirror-Finish Cermet Turning Insert
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TaeguTec DCMT070204FG CT3000
Master of Mirror Finishes: High-Speed Uncoated Cermet for Precision Turning
Product Overview
"Which cermet insert is best for achieving a mirror Ra finish on carbon steel at high cutting speeds?"
The TaeguTec DCMT070204FG CT3000 is a high-performance finishing specialist designed for ISO P (Steel) and ISO K (Cast Iron). The CT3000 grade is an uncoated cermet, which boasts a high resistance to oxidation and a low affinity for workpiece materials, virtually eliminating built-up edge (BUE). The FG (Finishing-General) chipbreaker features a Sharp-Edge design that excels in light-duty finishing, providing consistent chip evacuation and superior surface integrity. With a 0.4mm (1/64") radius, it strikes the ideal balance between edge strength and precision detail.
Key Features
A TiCN-based cermet that maintains edge sharpness longer than carbide in high-speed finishing environments.
Specifically engineered for small depths of cut, ensuring smooth chip flow and preventing surface scratching.
The uncoated surface reduces friction and thermal deformation, ensuring micron-level dimensional accuracy.
Technical Specifications
ISO Code Decoding: DCMT070204FG
55° Rhom
7° Relief
Tolerance
Hole/Sint
6.35mm IC
2.38mm S
0.4mm RE
Finishing
| Unit System | Designation | I.C. Dimension | Thickness (S) |
|---|---|---|---|
| Metric (ISO) | DCMT070204FG | 6.35 mm | 2.38 mm |
| Imperial (ANSI) | DCMT21.51FG | 0.250" | 0.094" |
Recommended Cutting Parameters
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Low Carbon Steel | 200 - 500 m/min | 0.05 - 0.15 mm/rev |
| Alloy Steel | 150 - 400 m/min | 0.04 - 0.12 mm/rev |
Compatible Toolholders
This 07-size DCMT insert fits all standard precision holders including SDJCR/L 07, SDNCN 07, and S-SDUCR/L 07 boring bars.
Product Applications
- High-precision finishing of automotive fuel injection components.
- Mirror-finish turning for optical and watchmaking steel parts.
- Internal boring of small-diameter cylinders where surface Ra is critical.
- Ideal for Swiss-type automatic lathes and high-speed CNC centers.
TaeguTec Grade Comparison (Steel Specialists)
| Grade Name | Substrate Type | Key Performance |
|---|---|---|
| CT3000 (Cermet) | Uncoated TiCN | Mirror Ra: Absolute best for surface gloss. |
| PV3010 (Cermet) | PVD Coated Cermet | Tool Life: Better wear resistance in abrasive steels. |
Why Choose TaeguTec?
TaeguTec, as part of the IMC Group, is a global pioneer in cermet technology. Our CT3000 series is specifically engineered for the modern CNC shop that refuses to compromise between spindle speed and surface aesthetic. By utilizing a high-purity TiCN substrate, we have created an insert that maintains a razor-sharp edge without the need for coating, allowing for cleaner cuts and less friction. When your project demands a "part-from-machine" finish that eliminates the need for polishing, TaeguTec is the industry’s trusted partner.
Global Industry Feedback
"Eliminated Secondary Polishing"
Using CT3000 on 1045 steel. The finish is so bright we skipped the polishing step. Incredible Ra values.
— Precision Dynamics (USA)"Top für kleine Bohrungen"
Great for small boring bars. Chip control is very stable even at 0.1mm DOC.
— Zerspanung GmbH (Germany)"Consistent in Cast Iron"
Excellent dimensional stability. Dimensions stay consistent across 500+ parts.
— Moto-Tech (Italy)Frequently Asked Questions
1. Should I use coolant with CT3000 cermet?
Cermet can be used dry or wet. However, for the best surface finish and to prevent thermal shock, high-pressure continuous coolant or MQL is recommended.
2. Is the FG breaker suitable for roughing?
No. The FG chipbreaker is optimized for finishing cycles (DOC < 1.0mm). For heavier cuts, look for the TaeguTec MT or PC chipbreakers.
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.