TaeguTec CNMG120404FG TT5100 | Precision Cast Iron Finishing Insert
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TaeguTec CNMG120404FG TT5100
High-Velocity Cast Iron Specialist: Precision Finishing with Advanced CVD Technology
Product Overview
"Which carbide insert grade offers the highest wear resistance and best surface finish during high-speed finishing of gray and ductile cast iron?"
The TaeguTec CNMG120404FG TT5100 is a high-precision 80° rhombic insert purpose-built for ISO K (Cast Iron) finishing. Utilizing the industry-leading TT5100 CVD (Chemical Vapor Deposition) grade, this tool features a thick, highly wear-resistant alumina coating optimized for abrasive materials. The FG (Finishing) chipbreaker geometry is designed with a sharp cutting edge and positive rake angle to minimize cutting forces and ensure exceptional chip evacuation, even at light depths of cut and high velocities.
Key Features
A specialized substrate combined with a thick Al2O3 layer designed to resist abrasive flank wear at high temperatures.
Optimized for finishing (FG), providing mirror-like surface Ra and preventing "bird-nesting" at low feed rates.
Superior coating adhesion ensures the edge stays intact during long finishing passes in mass production cycles.
Technical Specifications
Decoding CNMG120404FG
80° Rhom.
0° Relief
Tolerance
Fixing
12.9mm L
4.76mm S
0.4mm Rad.
Finishing
| Unit System | Designation | I.C. Size | Radius (RE) |
|---|---|---|---|
| Metric (ISO) | CNMG120404FG | 12.7 mm | 0.4 mm |
| Imperial (ANSI) | CNMG431FG | 0.500" | 0.016" |
Recommended Cutting Parameters (ISO K)
| Material | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Gray Cast Iron (GG25) | 250 - 600 m/min | 0.08 - 0.25 mm/rev |
| Ductile Iron (GGG40) | 180 - 450 m/min | 0.10 - 0.20 mm/rev |
Compatible Holders
Fits all standard DCLNR/L 12, PCLNR/L 12, and MCLNR/L 12 external toolholders and boring bars.
Product Applications
- High-speed finishing of gray cast iron engine components.
- Precision turning of ductile iron brake drums and rotors.
- Finishing passes on abrasive iron housings requiring tight tolerances.
- Industrial mass production where surface Ra is a critical metric.
TaeguTec Cast Iron Grade Benchmarking
| Grade Name | Characteristics | Best For |
|---|---|---|
| TT5100 (CVD) | Maximum Wear Resistance | High Velocity: Continuous stable finishing. |
| TT5080 (CVD) | Enhanced Toughness | Interrupted: Unstable setups or crusty iron. |
Why Choose TaeguTec?
TaeguTec, a member of the IMC Group, is a global leader in high-performance tooling. The TT5100 grade represents a strategic investment in spindle productivity. By selecting TaeguTec products, you choose engineered consistency that minimizes machine downtime, reduces scrap rates, and delivers the lowest cost-per-part in professional CNC operations.
Verified Global Feedback
"Mirror finish on GG25"
We use TT5100 for finishing gray iron pump bodies. The surface finish is better than anything else we've tried at 500m/min.
— Precision Foundry (Germany)"Exceptional Wear Resistance"
Replaced our standard grades with these FG breakers. Tool life increased by 40% on abrasive ductile iron parts.
— Manufacturing Corp. (USA)"Reliable for CNC Shops"
Very consistent. Maintaining tolerances across large batches is easy with the FG geometry.
— Tech Works (Japan)Frequently Asked Questions
1. Can I use TT5100 for Steel Turning (ISO P)?
No. TT5100 is a dedicated Cast Iron grade. For Steel, we recommend using the TT8125 or TT8115 grades for optimal performance.
2. What is the main benefit of the FG chipbreaker?
The FG breaker is specifically for finishing. It maintains exceptional surface Ra and provides better chip control at very light cutting depths.
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.