TaeguTec CNMG120404MT CT3000 | Cermet Turning Insert for Finishing
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TaeguTec CNMG120404MT CT3000
Precision Finishing Expert: High-Speed Cermet Technology for Mirror-Like Surface Finishes
Product Overview
"Which carbide insert grade is best for achieving high-precision surface Ra on carbon steel while maintaining dimensional stability at high speeds?"
The TaeguTec CNMG120404MT CT3000 is an 80° rhombic turning insert specifically designed for ISO P (Steel) finishing. Unlike standard tungsten carbide, the CT3000 Cermet grade (Ceramic + Metal) offers superior chemical stability and resistance to oxidation. This allows for significantly higher cutting speeds without losing edge sharpness. The MT chipbreaker is optimized for medium-to-light finishing, providing exceptional chip evacuation at small depths of cut, ensuring your final workpiece meets the most stringent cosmetic and dimensional standards.
Key Features
Excellent resistance to built-up edge (BUE) and oxidation, ensuring long tool life in high-speed finishing cycles.
Positive rake design for smooth cutting action, effectively controlling chips even at very light feeds.
Cermet's natural heat resistance allows for dry machining or high-speed wet cycles without crater wear.
Technical Specifications
ISO Designation Breakdown: CNMG120404MT
80° Rhom
0° Relief
Tolerance
Hole/Sinter
12.7mm L
4.76mm S
0.4mm RE
Chipbreaker
| Unit System | Designation | I.C. Size | Radius (RE) |
|---|---|---|---|
| Metric (ISO) | CNMG120404MT | 12.7 mm | 0.4 mm |
| Imperial (ANSI) | CNMG431MT | 0.500" | 0.016" |
Recommended Cutting Parameters (ISO P)
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Low Carbon Steel | 250 - 600 m/min | 0.05 - 0.25 mm/rev |
| Alloy Steel | 180 - 450 m/min | 0.05 - 0.20 mm/rev |
Compatible Holders
Matches all standard DCLNR/L 12, PCLNR/L 12, and MCLNR/L 12 external and internal toolholders.
Product Applications
- High-speed precision finishing of steel shafts and sleeves.
- Final turning operations requiring superior Ra surface brightness.
- CNC mass production where dimensional tolerance must be maintained over long shifts.
- Dry machining of steel parts where coolant is not preferred.
TaeguTec Cermet Grade Comparison
| Grade Name | Composition Profile | Primary Application |
|---|---|---|
| CT3000 (Cermet) | Standard High-Ra Cermet | Finishing: High speed, high precision. |
| PV3010 (PVD Cermet) | Coated Cermet | Universal: Added wear resistance for varied steel. |
Why Choose TaeguTec?
A global leader in the IMC Group, TaeguTec is renowned for its cutting-edge metallurgical research. The CT3000 Cermet grade is the result of decades of optimization in precision turning. By choosing TaeguTec, you are selecting industrial consistency that minimizes tool changes, reduces spindle load, and ensures that every finished part meets professional-grade standards. We deliver performance that powers global manufacturing.
Verified Global Feedback
"Stunning Finish"
Replaced our carbide inserts with CT3000 for finishing cycles. The mirror finish on mild steel is unbelievable. No secondary polishing needed.
— Precision Machining Co. (USA)"Superior Thermal Stability"
We run these at 500 m/min dry. The edges hold up remarkably well and the dimensions stay consistent all day.
— Automobil-Teile (Germany)"Excellent for Medium Finishing"
The MT breaker is very versatile. Good chip control even at shallow depths. Very stable performance on CNC lathes.
— High-Tech Industry (Japan)Frequently Asked Questions
1. Can Cermet be used for interrupted cuts?
Cermet is more brittle than tungsten carbide. It is primarily recommended for continuous finishing. For heavy interrupted cuts, we recommend TaeguTec's TT9225 or TT9235 grades.
2. Is CT3000 suitable for Stainless Steel?
While it can finish some stainless, Cermet is best optimized for ISO P (Carbon and Alloy Steel). For stainless, our TT8020 PVD grade is often a better choice.
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.