TaeguTec SNMG120408-MT CT3000 | High-Finish Cermet Turning Insert
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TaeguTec SNMG120408-MT CT3000
Mirror Finish Specialist: Uncoated Cermet for High-Velocity Steel Finishing
Product Overview
"Which CNC insert should I use to achieve a high-gloss surface finish on carbon steel while maintaining tight dimensional tolerances at high speeds?"
The TaeguTec SNMG120408-MT CT3000 is the industrial answer to high-precision finishing. Utilizing the CT3000 Cermet grade, this insert provides superior oxidation resistance and low affinity for workpiece materials, virtually eliminating Built-Up Edge (BUE). The MT (Medium-Tolerance) chipbreaker is specifically designed for medium turning and finishing, featuring a geometry that ensures excellent chip evacuation even at low depths of cut. When your application demands aesthetic excellence and micron-level accuracy in Steel (ISO P), this cermet solution outperforms traditional carbide.
Key Features
A titanium-based composite that maintains a sharp edge longer than carbide in finishing, resulting in "mirror" surfaces.
Balanced chip control for a wide range of feed rates, specifically optimized for smooth chip breaking in steel finishing.
Allows for significantly higher cutting speeds (Vc) than carbide, increasing overall workshop productivity.
Technical Specifications
ISO Code Decoding: SNMG120408-MT
Square
0° Relief
Tolerance
Hole/MT
12.7mm IC
4.76mm Thk
0.8mm RE
| Unit System | Designation | I.C. (Inscribed Circle) | ANSI Equivalent |
|---|---|---|---|
| Metric (ISO) | SNMG120408-MT | 12.70 mm | - |
| Imperial (ANSI) | SNMG432-MT | 0.500" | SNMG 432 |
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Carbon Steel (Finish) | 250 - 500 m/min | 0.10 - 0.35 mm/rev |
| Alloy Steel (Finish) | 200 - 400 m/min | 0.10 - 0.30 mm/rev |
Recommended Toolholders
For best results, use rigid clamping systems to leverage Cermet's precision. Fully compatible with: DSBNR/L 2525 M12, MSSNR/L 2525 M12, and precision boring bars.
Product Applications
- High-speed finishing of automotive shafts and transmission components.
- Precision turning of steel rollers where surface Ra is critical.
- Finish turning of high-tensile fasteners and precision spacers.
- General-purpose finishing of carbon and alloy steels under stable conditions.
Why Choose TaeguTec Cermet?
TaeguTec is at the forefront of Cermet technology. The CT3000 grade is specifically developed for the modern CNC shop that values both time and quality. Cermet inserts maintain their cutting edge sharpness much longer than coated carbide when performing light finishing cuts, which prevents dimensional "drift" over long production runs. By choosing our SNMG120408-MT CT3000, you are reducing tool change frequency and eliminating costly polishing or grinding steps. Invest in TaeguTec for precision that pays for itself.
Verified Global Feedback
"Mirror Surface"
We use CT3000 on low-carbon steel shafts. The finish is so good we were able to skip the grinding process entirely. Saved us hours.
— Precision Machining Co. (USA)"Hervorragende Maßhaltigkeit"
Outstanding dimensional stability. We run 500 parts without needing an offset. The MT chipbreaker works perfectly at 0.2mm depth.
— Drehtechnik Weber (Germany)"Ottima qualità"
Exceptional resistance to BUE. On gummy steels, this is the only insert that gives us a consistent finish.
— Meccanica di Alta Precisione (Italy)"Fast and Clean"
High cutting speeds are not a problem for this cermet. Clean chips and perfect Ra values every time.
— Kanto Precision (Japan)Frequently Asked Questions
1. Can I use CT3000 for interrupted cuts?
Cermet is more brittle than carbide. While CT3000 is quite tough, it is best used for continuous finishing. For interrupted cuts, we recommend a tough CVD carbide grade like TT8125.
2. Does this insert require coolant?
Cermet can be run dry due to its high thermal stability, but for the best surface finish and dimensional control, constant and high-pressure coolant is recommended.
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.