TaeguTec SNMG120404 TT7015 | High-Speed Steel Turning Insert
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TaeguTec SNMG120404 TT7015
High-Speed Finishing Master: The Ultimate CVD Wear Resistance Solution
Product Overview
"Which CNC insert is most reliable for high-velocity finishing of carbon steel while maintaining excellent surface Ra values and long tool life?"
The TaeguTec SNMG120404 TT7015 is designed specifically for high-efficiency turning of ISO P (Steel) and ISO K (Cast Iron). The TT7015 grade features a specialized CVD coating with a thick Al2O3 layer that provides industry-leading crater and flank wear resistance at high temperatures. The double-sided square geometry provides 8 sharp cutting edges, ensuring maximum cost-efficiency. With a 0.4mm nose radius, this insert is optimized for fine finishing, providing low cutting forces and preventing vibration in slender workpieces.
Key Features
A high-hardness substrate combined with a heat-resistant coating for ultra-high cutting speeds.
Excellent chip control at shallow depths of cut, ensuring smooth surfaces and tight tolerances.
Double-sided square design delivers more parts per insert, significantly lowering tooling costs.
Technical Specifications
ISO Code Decoding: SNMG120404
Square 90°
0° Relief
Tolerance
Chipbreaker
12.7mm IC
4.76mm S
0.4mm RE
| Unit System | Designation | I.C. (Inscribed Circle) | Thickness (S) |
|---|---|---|---|
| Metric (ISO) | SNMG120404 | 12.70 mm | 4.76 mm |
| Imperial (ANSI) | SNMG431 | 0.500" | 0.187" |
Recommended Cutting Parameters
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Carbon/Alloy Steel (ISO P) | 250 - 450 m/min | 0.05 - 0.25 mm/rev |
| Gray Cast Iron (ISO K) | 200 - 400 m/min | 0.10 - 0.30 mm/rev |
Compatible Toolholders
This SNMG 12 series insert fits standard negative rake 90° square holders. Best performance with: DSBNR/L 2525 M12, MSSNR/L 2525 M12, or S-PSLNR 12 boring bars.
Product Applications
- High-speed finish turning of automotive steel shafts and axles.
- Precision boring of cast iron gear housings.
- General-purpose finishing of carbon steel components in mass production.
- Machining of alloy steel parts where surface Ra requirements are stringent.
Why Choose TaeguTec?
TaeguTec is a global leader in metalworking solutions, and the SNMG120404 TT7015 is a benchmark for high-speed steel turning. We understand that in modern CNC shops, downtime for tool changes is profit lost. Our TT7015 grade is engineered with a proprietary thick CVD coating that serves as a thermal shield, allowing you to push your machine to its velocity limits without sacrificing edge integrity. When you choose TaeguTec, you invest in industrial precision that delivers world-class surface quality and predictable, stable performance across every batch.
Verified Global Feedback
"Steel Finishing Specialist"
We use these on 1045 steel shafts. The tool life at 350 m/min is incredible. Best finish we've seen on our CNC lathes.
— Precision Engineering (USA)"Hervorragende Qualität"
Very stable dimensions over 500 parts. The TT7015 grade handles the heat much better than other brands.
— Zerspanungstechnik (Germany)"Ottima durata"
8 edges per insert makes this very economical for our production line. Great chip control on light cuts.
— Meccanica di Precisione (Italy)"Consistent performance"
Works perfectly on cast iron too. Highly predictable wear patterns which help our automated systems.
— Sato Manufacturing (Japan)Frequently Asked Questions
1. Is TT7015 suitable for interrupted cuts?
TT7015 is a high-hardness grade for continuous finishing. For heavy interrupted cuts, the tougher TT8125 is recommended.
2. What is the benefit of the 0.4mm radius?
The small radius (04) reduces radial cutting forces, preventing vibration in thin parts and providing a finer surface Ra.
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.