Taegutec TCMT16T308PC TT8115 Carbide Insert for CNC Finish Turning (10pcs)
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TaeguTec TCMT16T308PC TT8115
Elite CVD Grade for Ultra-High-Speed Steel Finishing
Product Overview
"Which insert is best for maximizing cycle time reduction and surface Ra quality in continuous steel turning?"
The TaeguTec TCMT16T308PC TT8115 is a high-tech 16mm triangular insert specifically developed for high-velocity Steel (ISO P) applications. The TT8115 CVD grade utilizes an advanced coating matrix designed for extreme hardness and chemical stability, allowing it to withstand the intense heat generated during high-speed finishing operations. Paired with the PC (Positive Finishing) chipbreaker, it features a sharp cutting edge and specialized geometry to shear through alloy steels with minimal tool pressure. The 0.8mm corner radius provides enhanced edge security, ensuring dimensional stability across long production runs while delivering an exceptional mirror-like finish.
Core Advantages
Thick CVD coating optimized for maximum thermal shielding, allowing Vc speeds over 350 m/min in specific steels.
Designed for finishing depths of cut (Ap), effectively curling chips even in gummy low-carbon steels.
The TT8115 substrate resists the chemical wear and deformation typical of high-velocity dry or wet machining.
Technical Specifications
ISO Model Decoding: TCMT 16T308 PC
Triangle
7° Relief
Tolerance
W/ Hole
16.5mm L
3.97mm T
0.8mm RE
| Standard | Designation | I.C. Size | Thickness |
|---|---|---|---|
| Metric | TCMT 16T308 PC | 9.52 mm | 3.97 mm |
| Imperial | TCMT 3(2.5)2 PC | 0.375" | 0.156" |
Recommended Cutting Parameters (TT8115)
| Material Group | Vc (m/min) | fn (mm/rev) |
|---|---|---|
| Carbon Steel (Finishing) | 250 - 450 | 0.08 - 0.25 |
| Alloy Steel (Continuous) | 200 - 380 | 0.08 - 0.20 |
System Compatibility
Shop TCMT 16 Compatible Holders →Applications & Compatibility
- Machining Operations: Specialized for finishing and light semi-finishing under stable conditions.
- Industrial Focus: High-volume production of automotive shafts, gear spindles, and hydraulic parts.
- Optimal Materials: Primary ISO P range, specifically alloyed and unalloyed steels.
- Hardware Support: Fits all ISO-standard STFCR/L external holders and S-TCMCR/L internal boring bars.
TaeguTec Grade Comparison
| Grade | Process | ISO Area | Best Performance For |
|---|---|---|---|
| TT8115 | CVD | P (Steel) | Max Velocity / High Finish Quality |
| TT9225 | CVD | P (Steel) | Universal Steel Grade / Balanced Performance |
| TT9080 | PVD | M / S | Stainless & Superalloy Specialist |
Why Choose Us
Authentic TaeguTec tooling solutions provided with technical backup. We specialize in industrial-grade components that allow your CNC machines to run at peak efficiency with reduced downtime.
"TT8115 is incredible for high-volume shaft production. I pushed the speed by 30% and the finish is still perfect."
— Jason R., USA"Perfekt für die Serienfertigung. Extreme Verschleißfestigkeit bei legiertem Stahl."
— Werner H., Germany"Genuine quality. Consistent tool life across thousands of parts in our Tokyo plant."
— Yuki M., Japan"Finitura superficiale superiore su acciaio 4140. Molto stabile."
— Alessandro F., Italy"Great productivity boost. Best finishing grade we've tested for precision steel work."
— Simon T., UKFrequently Asked Questions
A: No. TT8115 is a high-hardness grade optimized for wear resistance. For heavy interruptions, the TT9225 or TT9080 grades are much safer options.
A: The 0.8mm radius is stronger than the 0.4mm, allowing for higher feed rates while maintaining a smooth surface finish (theoretical Ra) when the machine is stable.
A: TT8115 is primarily a Steel (ISO P) grade. For high-speed stainless finishing, we recommend the PVD TT9080 for better edge integrity.
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.