TaeguTec CCMT09T304FG TT8125 | PVD Carbide Insert for Stainless Steel
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TaeguTec CCMT09T308FG TT8125
Precision PVD Coated Grade for Superior Stainless Steel Finishing Stability
Product Overview
"Which insert offers the best balance of edge strength and chip control for finishing 304/316 stainless steel at high stability?"
The TaeguTec CCMT09T308FG TT8125 is a versatile 80° rhombic turning insert specifically optimized for ISO M (Stainless Steel) and ISO P (Steel) finishing. Featuring the advanced TT8125 PVD-coated carbide grade, this tool utilizes a specialized sub-micron substrate that offers exceptional resistance to thermal cracking and adhesive wear. The FG chipbreaker (Finishing Geometry) is designed with a sharp rake angle to slice through "gummy" materials, while the 0.8mm corner radius provides the necessary edge strength for stable, high-quality surface finishes even in slightly interrupted cuts.
Key Features
A larger corner radius compared to the 04 series offers increased tool life and better edge security for demanding finishing tasks.
Advanced PVD coating provides a smooth surface that effectively prevents Built-Up Edge (BUE) in stainless steel machining.
Engineered for low cutting forces, ensuring dimensional accuracy and excellent surface integrity (Ra values).
Technical Specifications
ISO Code Explanation: CCMT09T308FG
80° Rhom.
7° Relief
Tolerance
Hole/Sint.
9.7mm L
3.97mm S
0.8mm Rad.
Finishing G
| Unit System | Model Number | IC (Inscribed Circle) | Radius (RE) |
|---|---|---|---|
| Metric (ISO) | CCMT09T308FG | 9.525 mm | 0.8 mm |
| Imperial (ANSI) | CCMT32.52FG | 0.375" | 0.031" |
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Stainless Steel (ISO M) | 110 - 240 m/min | 0.08 - 0.22 mm/rev |
| Carbon/Alloy Steel (ISO P) | 140 - 280 m/min | 0.08 - 0.25 mm/rev |
Compatible Holders
This insert is designed for standard SCLCR/L 09 external turning holders and S-SCLCR/L 09 boring bars.
Product Applications
- High-quality finishing of stainless steel components in the food and medical industries.
- Precision boring operations where edge security and radius strength are critical.
- Turning of alloy steel shafts and hydraulic components requiring strict tolerances.
- Long-run production of corrosion-resistant fasteners and hardware.
TaeguTec Grade Comparison
| Grade | Coating | Primary Application |
|---|---|---|
| TT8125 (PVD) | TiAlN/TiN | Specialist: Stability and precision in Stainless Steel. |
| TT9080 (PVD) | Multi-PVD | Universal: Mixed material production (M, P, S). |
Why Choose TaeguTec?
TaeguTec, a member of the IMC Group, is a global leader in metalworking innovation. The TT8125 grade represents a specialized solution for workshops that prioritize consistency and finish quality in stainless steel. By choosing TaeguTec, you are utilizing South Korean manufacturing excellence that ensures lower cost-per-part and high-predictability tooling cycles.
Verified Global Feedback
"Strongest finishing edge"
The 0.8mm radius on the TT8125 grade is a game changer for our 316 shafts. Much tougher than the standard 0.4mm inserts.
— Marine Precision (USA)"Top Oberflächengüte"
The surface finish is consistently mirror-like. Predictable tool life across hundreds of parts in alloy steel.
— Feinmechanik GmbH (Germany)"Affidabile e Versatile"
A very solid finishing tool. The chipbreaker works exactly as described, even at very shallow depths of cut.
— Officina Meccanica (Italy)Frequently Asked Questions
1. When should I use 308 (0.8mm) instead of 304 (0.4mm)?
Choose the 308 (0.8mm) radius when you need higher edge security, higher feed rates, or if you are dealing with slightly interrupted cuts. The 304 is better for very tight corners or thin-walled parts.
2. Does this work on Titanium?
While TT8125 can handle some heat-resistant alloys, for dedicated Titanium machining, we recommend the TT8020 grade for superior thermal resistance.
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.