TaeguTec SCMT120404-MT CT3000 | Square Cermet Finishing Insert
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TaeguTec SCMT120404-MT CT3000
Precision Cermet Technology: The Professional Standard for Mirror-Finish Steel Turning
Product Overview
"Which square positive insert is best for achieving a high-gloss finish on alloy steel while maintaining high cutting speeds and tight tolerances?"
The TaeguTec SCMT120404-MT CT3000 is the industrial answer for precision ISO P (Steel) finishing. Unlike traditional carbide, the CT3000 Cermet grade (Ceramic + Metal) possesses a low affinity for steel, which prevents the material from welding to the edge. This virtually eliminates built-up edge (BUE) and results in a superior surface Ra value. The MT (Medium) chipbreaker is geometry-optimized to control chips even at low depths of cut, ensuring a clean workpiece. With its 0.4mm radius, this insert is the go-to choice for CNC operators who require dimensional perfection and a high-aesthetic finish.
Key Features
High chemical stability and heat resistance allow for faster cutting speeds than standard carbide.
The non-stick nature of cermet ensures a mirror-like finish, reducing the need for secondary polishing.
Designed for high-accuracy finishing passes where dimensional stability is critical over long production runs.
Technical Specifications
ISO Code Decoding: SCMT120404-MT
Square 90°
7° Relief
Tolerance
Hole/Sint
12.7mm IC
4.76mm S
0.4mm RE
Med Chip
| Unit System | Designation | I.C. (Inscribed Circle) | Thickness (S) |
|---|---|---|---|
| Metric (ISO) | SCMT120404-MT | 12.7 mm | 4.76 mm |
| Imperial (ANSI) | SCMT431-MT | 0.500" | 0.187" |
Recommended Cutting Parameters
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Carbon Steel (P) | 200 - 450 m/min | 0.05 - 0.20 mm/rev |
| Alloy Steel (P) | 150 - 350 m/min | 0.05 - 0.18 mm/rev |
Compatible Toolholders
This SCMT 12 series cermet insert fits standard 90° square positive holders. Compatible with: SSKCR/L 12, SCKCR/L 12, or S-SCKCR 12 series boring bars for internal steel finishing.
Product Applications
- High-speed finishing of carbon and alloy steel components.
- Precision turning of automotive geared components and valve parts.
- Machining of aerospace fasteners where surface Ra is critical.
- High-efficiency CNC operations requiring dimensional stability.
TaeguTec Material Grade Benchmark
| Grade Name | Material Type | Primary Application |
|---|---|---|
| CT3000 | Uncoated Cermet | Finishing: Best surface quality and precision. |
| TT8115 | CVD Carbide | High Speed: Continuous turning with high wear resistance. |
Why Choose TaeguTec?
TaeguTec is a global pioneer in tungsten carbide and cermet technology, and the SCMT 120404-MT CT3000 is a testament to our precision engineering. We understand that in finishing operations, "good enough" is not an option. By utilizing our proprietary cermet substrate, we provide a tool that stays sharper longer than standard carbide, specifically during high-speed, light-depth passes. The MT chipbreaker is the result of thousands of hours of field testing, ensuring that your machine runs smoother and your parts look better. When you choose TaeguTec, you choose industrial excellence.
Verified Global Feedback
"Mirror Finish Every Time"
We use CT3000 for finishing precision shafts. The surface quality is incredible, often saving us a grinding step.
— Precision Dynamics (USA)"Exzellente Standzeit"
Very stable tool life in alloy steel. The MT chipbreaker works flawlessly even at low feed rates. Top quality.
— Schmidt CNC-Technik (Germany)"Qualità Superiore"
Excellent resistance to built-up edge. It maintains dimensional accuracy over long batches perfectly.
— Meccanica di Precisione (Italy)"Sharp and Reliable"
A very sharp edge that cuts beautifully. Predictable wear patterns make production planning much easier.
— Sato Precision Works (Japan)Frequently Asked Questions
1. When should I choose Cermet over Carbide?
Choose Cermet (CT3000) when your priority is surface finish and dimensional accuracy during light-duty finishing passes on steel.
2. Can I use this for interrupted cutting?
Cermet is more brittle than carbide. For interrupted cuts or roughing, we recommend 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.