TaeguTec SNMG120408 TT7015 | High-Speed Steel Turning Insert
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TaeguTec SNMG120408 TT7015
High-Speed Industrial Productivity: Advanced CVD Wear Resistance
Product Overview
"Which CNC insert provides the highest stability and longest tool life when performing high-speed turning on carbon steel and gray cast iron?"
The TaeguTec SNMG120408 TT7015 is the industrial answer for high-velocity machining. Targeted at ISO P (Steel) and ISO K (Cast Iron), this insert thrives where heat and abrasion typically cause failure. The TT7015 grade features a thick Al2O3 (Alumina) CVD coating that acts as a thermal shield, allowing for significantly higher surface speeds (m/min) compared to standard grades. The 0.8mm radius combined with a robust chipbreaker geometry ensures excellent chip evacuation during medium turning operations, preventing chip-nesting and workpiece damage.
Key Features
Thick Alumina coating provides superior crater wear resistance, making it ideal for continuous, high-speed cutting.
Double-sided square design offers 8 usable cutting edges, drastically reducing the cost-per-component in mass production.
Optimized for dry machining or high-pressure coolant environments, maintaining edge sharpness even under intense heat.
Technical Specifications
ISO Code Decoding: SNMG120408
Square 90°
0° Relief
Tolerance
W/Hole
12.7mm IC
4.76mm S
0.8mm RE
| Unit System | Designation | I.C. (Inscribed Circle) | Thickness (S) |
|---|---|---|---|
| Metric (ISO) | SNMG120408 | 12.70 mm | 4.76 mm |
| Imperial (ANSI) | SNMG432 | 0.500" | 0.187" |
Recommended Cutting Parameters
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Carbon Steel (ISO P) | 280 - 450 m/min | 0.15 - 0.45 mm/rev |
| Gray Cast Iron (ISO K) | 250 - 500 m/min | 0.20 - 0.50 mm/rev |
Compatible Toolholders
This SNMG 12 series insert fits standard negative rake 90° square holders. Compatible with: DSBNR/L 2525 M12, MSSNR/L 2525 M12, and PSSNR/L 2525 M12.
Product Applications
- High-speed medium turning of automotive steel axles and shafts.
- Machining of gray cast iron engine blocks and flywheels.
- Mass production of steel fasteners and industrial valves.
- Continuous cutting of alloy steel parts in high-output automated lines.
Why Choose TaeguTec?
TaeguTec is a global leader in metalworking technology. The SNMG120408 TT7015 is a testament to our commitment to high-speed CNC productivity. While standard grades degrade under extreme friction, our TT7015 grade maintains its hardness, reducing cratering and edge failure. By choosing TaeguTec, you are investing in a tool designed to maximize machine uptime, reduce insert replacement frequency, and deliver a Ra surface finish that meets the highest industrial standards.
Verified Global Feedback
"Steel Production Beast"
We run these on 1045 steel at high speeds. The tool life is double what we were getting with our previous supplier. Highly recommended.
— Manufacturing Corp (USA)"Top für Gusseisen"
Outstanding performance in gray iron. Wear is very predictable, which is great for our automated production.
— CNC-Technik GmbH (Germany)"Qualità costante"
Dimensional stability is key for us. This insert holds tolerances over hundreds of parts with ease.
— Officina Meccanica (Italy)"Great at high speeds"
Very impressive Alumina coating. Handles the heat during dry machining very well.
— Sato Precision (Japan)Frequently Asked Questions
1. Is TT7015 suitable for interrupted cuts?
TT7015 is a high-hardness grade optimized for continuous high-speed turning. For heavy interruptions, consider the tougher TT8125 grade.
2. Can I use this for Stainless Steel?
While possible, it is not recommended. For Stainless Steel (ISO M), the PVD-coated TT5080 or TT8020 grades will provide much better results.
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.