TaeguTec SCMT09T308-MT CT3000 | Square Cermet Finishing Insert
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TaeguTec SCMT09T308-MT CT3000
Precision Cermet Technology: The Ultimate Solution for Mirror-Finish Steel Turning
Product Overview
"Which square insert should I use to achieve the best possible surface finish on steel parts while maintaining high cutting speeds?"
The TaeguTec SCMT09T308-MT CT3000 is specifically designed for high-speed finishing of ISO P (Steel). The CT3000 Cermet grade (Ceramic + Metal) provides a unique advantage over traditional carbide: it has low affinity for steel, which virtually eliminates built-up edge and produces a superior surface Ra value. The MT (Medium) chipbreaker features a sharp, positive rake angle that ensures clean chip shearing and stable evacuation. With its 0.8mm radius, this insert offers enhanced durability for high-precision semi-finishing tasks, making it an essential tool for automotive and aerospace components.
Key Features
Unmatched chemical stability and thermal resistance for high-speed precision finishing without the risk of oxidation wear.
Specifically engineered to prevent built-up edge, ensuring consistent dimensional accuracy and a high-quality aesthetic finish.
The Medium chipbreaker offers a wide range of chip control, making it versatile for both final finish and semi-finishing passes.
Technical Specifications
ISO Code Decoding: SCMT09T308-MT
Square 90°
7° Relief
Tolerance
Hole/Sint
9.52mm IC
3.97mm S
0.8mm RE
Med Chip
| Unit System | Designation | I.C. (Inscribed Circle) | Thickness (S) |
|---|---|---|---|
| Metric (ISO) | SCMT09T308-MT | 9.52 mm | 3.97 mm |
| Imperial (ANSI) | SCMT32.52-MT | 0.375" | 0.156" |
Recommended Cutting Parameters
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Carbon Steel (P) | 200 - 400 m/min | 0.05 - 0.25 mm/rev |
| Alloy Steel (P) | 150 - 300 m/min | 0.05 - 0.20 mm/rev |
Compatible Toolholders
This SCMT 09 series cermet insert fits standard 90° square positive holders. Best paired with: SSKCR/L 09, SCKCR/L 09, or S-SCKCR 09 boring bars for precision internal finishing.
Product Applications
- High-speed finishing of carbon and alloy steel parts requiring mirror finishes.
- Precision turning of automotive geared components and transmission shafts.
- Finishing passes in mold and die components for high surface Ra quality.
- Dry machining applications where cermet stability outperforms carbide.
TaeguTec Material Comparison
| Grade | Type | Primary Benefit |
|---|---|---|
| CT3000 | Cermet | Finish Specialist: Exceptional surface quality and BUE resistance. |
| TT8115 | CVD Carbide | Speed/Life: High-speed continuous cutting with high wear resistance. |
Why Choose TaeguTec?
TaeguTec is a global pioneer in advanced tooling, and the SCMT 09T308-MT CT3000 represents the pinnacle of finishing technology. Cermet inserts are often the "secret weapon" for shops looking to reduce polishing time and increase part aesthetics. By using our proprietary titanium-based cermet substrate, we offer a tool that stays sharper longer than carbide during light finishing passes. The MT chipbreaker is the result of thousands of hours of field testing, designed to ensure that even at low depths of cut, chip control remains perfect. Choose TaeguTec for precision that makes your work shine.
Verified Global Feedback
"Amazing Finish"
We switched to the CT3000 for finishing our bearing housings. The surface finish is so good we were able to skip a grinding step. Highly recommended.
— Precision Components Inc. (USA)"Exzellente Oberflächengüte"
Outstanding performance on alloy steel. The MT geometry breaks chips perfectly even at very small feed rates. Very stable cermet grade.
— Müller Zerspanungstechnik (Germany)"Qualità Superiore"
Perfect for high-speed finishing. The dimensional stability over 500 parts was impressive. No built-up edge issues at all.
— Meccanica di Precisione (Italy)"Very Clean Cuts"
Very effective for dry machining steel parts. The tool life is quite long for finishing operations. Very satisfied with TaeguTec.
— Sato Precision Works (Japan)Frequently Asked Questions
1. Why use Cermet (CT3000) instead of Carbide?
Cermet has a higher chemical resistance and lower friction against steel, which prevents built-up edge (BUE) and results in a significantly better surface finish than carbide.
2. Can I use this for interrupted cutting?
Cermet is more brittle than carbide. While it can handle light vibrations, it is best suited for continuous finishing. For interrupted cuts, we suggest using a tough carbide grade like TT8125.
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.