TaeguTec CNMG120404ML TT5080 | Tough Cast Iron Turning Insert
Price shown is a starting point. Contact us for a precise quote based on your requirements.
TaeguTec CNMG120404ML TT5080
The Tough-Choice Specialist: High-Stability CVD Grade for Challenging Cast Iron Cuts
Product Overview
"Which carbide insert grade is best for interrupted cuts or machining abrasive cast iron where edge chipping is a constant threat?"
The TaeguTec CNMG120404ML TT5080 is an 80° rhombic turning insert designed to bridge the gap between high speed and extreme toughness. Featuring the TT5080 CVD (Chemical Vapor Deposition) grade, this insert utilizes a specialized alumina coating that provides excellent heat resistance while maintaining a highly shock-resistant substrate. The ML (Medium-Light) chipbreaker is engineered with a positive rake and sharp geometry, significantly reducing cutting forces and vibrations, making it the ideal choice for ductile iron, gray iron, and even heavy-duty steel applications involving unstable setups.
Key Features
Built with a specialized substrate that absorbs mechanical shocks, perfect for interrupted cuts or crusty castings.
Sharp cutting edge reduces the power required from the machine spindle and minimizes workpiece vibration.
Multi-layer coating provides a durable thermal shield, extending tool life during abrasive ISO K machining.
Technical Specifications
Decoding CNMG120404ML
80° Rhom
0° Relief
Tolerance
Fixing
12.7mm IC
4.76mm S
0.4mm RE
Med-Light
| Unit System | Designation | I.C. Size | Radius (RE) |
|---|---|---|---|
| Metric (ISO) | CNMG120404ML | 12.7 mm | 0.4 mm |
| Imperial (ANSI) | CNMG431ML | 0.500" | 0.016" |
Recommended Cutting Parameters (ISO K)
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Gray Cast Iron (GG25) | 180 - 450 m/min | 0.12 - 0.35 mm/rev |
| Ductile Iron (GGG40) | 140 - 320 m/min | 0.15 - 0.30 mm/rev |
Compatible Holders
Fits all standard DCLNR/L 12, PCLNR/L 12, and MCLNR/L 12 toolholders and boring bars.
Product Applications
- Medium to light turning of cast iron motor housings and gearboxes.
- Machining of ductile iron components with interrupted surfaces.
- Turning operations on unstable workpieces where vibration reduction is critical.
- General-purpose turning of abrasive materials requiring high edge integrity.
TaeguTec Grade Comparison (Cast Iron)
| Grade Name | Core Strength | Best Use |
|---|---|---|
| TT5080 (CVD) | Toughness / Shock Resist | Interrupted: Unstable or heavy scaling. |
| TT5100 (CVD) | Maximum Wear Resist | Continuous: High-speed stable finishing. |
Why Choose TaeguTec?
A premier brand within the IMC Group, TaeguTec is synonymous with reliability in the toughest manufacturing environments. The CNMG 12 series combined with the TT5080 grade represents a strategic choice for shops that cannot afford edge failure. By selecting TaeguTec, you invest in engineered consistency that reduces scrap, protects your spindle, and delivers the lowest total cost-per-part in professional industrial machining.
Verified Global Feedback
"Interrupted Cut King"
We were chipping inserts every 10 parts on ductile iron castings until we switched to TT5080. Now we get a full shift per corner.
— Castings GmbH (Germany)"No More Chatter"
The ML breaker really helps on our lighter lathes. Very sharp, low pressure, and the finish is excellent for a tough grade.
— Precision Lathe Works (USA)"Solid and Predictable"
Consistent performance across a huge batch of gray iron housings. Edge wear was even and predictable.
— Heavy Industrial (Japan)Frequently Asked Questions
1. Is TT5080 better than TT5100?
TT5080 is tougher (better for shock), while TT5100 is more wear-resistant (better for high-speed continuous cuts). Choose TT5080 for interrupted or unstable conditions.
2. Can I use this for Stainless Steel?
While TT5080 can handle some steels, we recommend our dedicated ISO M grades for the best results in stainless steel.
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.