TaeguTec CCMT09T304FG TT8115 | High-Speed PVD Finishing Insert
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TaeguTec CCMT09T304FG TT8115
High-Wear Resistance PVD Grade for High-Speed Stainless Finishing
Product Overview
"Which insert is specifically designed to handle high cutting speeds in stainless steel while maintaining a mirror-like surface finish?"
The TaeguTec CCMT09T304FG TT8115 is a premium 80° rhombic turning insert engineered for ISO M (Stainless Steel) and ISO P (Steel) finishing. The TT8115 grade features a specialized PVD coating over a hard, wear-resistant substrate, making it ideal for applications requiring high surface speeds (Vc) and long tool life. The FG chipbreaker (Finishing Geometry) utilizes a sharp, positive rake angle that slices through gummy materials, effectively eliminating built-up edge and ensuring dimensional stability in high-volume production environments.
Key Features
The TT8115 grade is formulated for elevated cutting speeds, reducing cycle times without compromising the cutting edge.
Specifically tuned for light finishing depths, the FG chipbreaker provides excellent chip control and low cutting forces.
Ultra-smooth PVD surface prevents material welding, a common issue when machining stainless steel and low-carbon alloys.
Technical Specifications
ISO Code Breakdown: CCMT09T304FG
80° Rhom.
7° Relief
Tolerance
Fixing
9.7mm L
3.97mm S
0.4mm Rad.
Finishing
| Unit System | Model Number | IC (Inscribed Circle) | Radius (RE) |
|---|---|---|---|
| Metric (ISO) | CCMT09T304FG | 9.525 mm | 0.4 mm |
| Imperial (ANSI) | CCMT32.51FG | 0.375" | 0.016" |
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Stainless Steel (M) | 150 - 280 m/min | 0.05 - 0.18 mm/rev |
| Carbon Steel (P) | 180 - 320 m/min | 0.05 - 0.20 mm/rev |
Compatible Holders
This insert is compatible with standard SCLCR/L 09 external toolholders and S-SCLCR/L 09 boring bars.
Product Applications
- High-speed finishing of 300 and 400 series stainless steel.
- Precision boring operations on small-diameter alloy steel components.
- Finishing of thin-walled parts where low cutting pressure is required.
- Production turning of high-quality surface finish components for medical and aerospace.
TaeguTec Grade Benchmarking
| Grade | Coating | Primary Strength |
|---|---|---|
| TT8115 (PVD) | TiAlN/TiN | High Speed: Best for productivity in Stainless/Steel. |
| TT8125 (PVD) | TiAlN/TiN | Stability: General purpose finishing for Stainless. |
Why Choose TaeguTec?
TaeguTec, a member of the IMC Group, is a global leader in metalworking innovation. The TT8115 grade represents the cutting edge of PVD technology, designed to bridge the gap between high productivity and exceptional part quality. By choosing TaeguTec, you invest in South Korean manufacturing excellence, ensuring reduced downtime and lower cost-per-part in every production run.
Verified Global Feedback
"Productivity Jump"
We pushed our Vc up by 25% on 304 stainless with TT8115. The finish is mirror-like and the tool life is incredible.
— Precision Lathe Works (USA)"Top Oberflächengüte"
Consistent results on high-speed runs. The FG geometry handles chips perfectly at light depths of cut.
— CNC-Fertigung GmbH (Germany)"Molto Affidabile"
A very stable finishing insert for our stainless steel valve components. Zero issues with adhesion.
— Meccanica S.R.L. (Italy)Frequently Asked Questions
1. When should I choose TT8115 over TT8125?
Choose TT8115 for high-speed finishing where productivity is the priority. Use TT8125 for more stable, general-purpose stainless finishing at moderate speeds.
2. Can I use this for roughing?
No, the FG geometry is specifically designed for Finishing. For roughing, please see our "MT" or "RT" chipbreaker options in the same grade.
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.