Taegutec TCMT16T304PC TT9225 Carbide Insert for CNC Finish Turning (10pcs)
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TaeguTec TCMT16T304PC TT9225
High-Productivity CVD Grade for Precision Steel Machining
Product Overview
"Which insert is the most reliable for high-speed finishing of carbon and alloy steels in large production runs?"
The TaeguTec TCMT16T304PC TT9225 is a premium 16mm triangular insert designed for high-efficiency Steel (ISO P) turning. The TT9225 CVD grade features a thick Aluminum Oxide (Al2O3) coating layer that provides an exceptional thermal barrier, allowing for significantly higher cutting speeds compared to PVD alternatives. This grade is specifically engineered to combat crater wear and plastic deformation. Paired with the PC (Positive Finishing) chipbreaker, which utilizes a sharp rake angle to shear cleanly through steel, it delivers incredible surface Ra values and dimensional consistency. It is the industrial standard for finishing operations in automotive, machinery, and general engineering components.
Core Advantages
Superior heat resistance and hardness for high-speed (Vc) machining, ensuring maximum parts-per-edge.
Optimized for light depths of cut, providing excellent chip control and preventing surface marring.
The TT9225 substrate provides a stable platform that resists flank wear even in continuous long-run passes.
Technical Specifications
ISO Model Decoding: TCMT 16T304 PC
Triangle
7° Relief
Tolerance
W/ Hole
16.5mm L
3.97mm T
0.4mm RE
| Standard | Designation | I.C. Size | Thickness |
|---|---|---|---|
| Metric | TCMT 16T304 PC | 9.52 mm | 3.97 mm |
| Imperial | TCMT 3(2.5)1 PC | 0.375" | 0.156" |
Recommended Cutting Parameters (TT9225)
| Material Group | Vc (m/min) | fn (mm/rev) |
|---|---|---|
| Carbon Steel (P1-P2) | 200 - 350 | 0.05 - 0.20 |
| Alloy Steel (P3-P4) | 150 - 280 | 0.05 - 0.15 |
System Compatibility
View Compatible TCMT 16 Boring Bars →Applications & Compatibility
- Precision Finishing: Best for 0.2mm to 1.5mm depth of cut in steel turning.
- Workpiece Types: Shafts, gears, spindles, and small housings made of steel alloys.
- Material Scope: Primary focus on ISO P (Steel) including mild steel, alloy steel, and cast steel.
- Hardware Standard: Fits all ISO-compliant S-TCMCR/L internal and STFCR/L external toolholders.
TaeguTec Grade Comparison
| Grade | Coating | ISO Area | Primary Performance |
|---|---|---|---|
| TT9225 | CVD | P | High Velocity & Steel Wear Resistance |
| TT8125 | CVD | P | Ultra High-Speed Finishing |
| TT9080 | PVD | M / S | Stainless & Heat Resistant Toughness |
Why Choose Us
Authentic TaeguTec CNC tooling backed by industrial expertise. We ensure your production environment has the most reliable inserts for continuous, high-speed machining.
"TT9225 is my go-to for 4140 steel. The CVD coating holds up much better at high speeds than my previous brand."
— Steven B., USA"Sehr gute Oberflächenqualität. The PC breaker curls chips perfectly on soft mild steel."
— Klaus M., Germany"Fast delivery and genuine quality. The tool life is double what we expected."
— Jun T., Japan"Ottima resistenza all'usura su acciaio bonificato. Finitura impeccabile."
— Roberto D., Italy"The best finishing insert for our CNC lathes. Precision and speed in one package."
— Greg P., UKFrequently Asked Questions
A: No. CVD coatings for steel are not suitable for aluminum as they cause adhesion. For aluminum, please use uncoated or polished carbide grades.
A: TT9225 is a finishing grade optimized for continuous cuts. For heavy interruptions in steel, a tougher grade like TT5080 or TT9080 (PVD) is recommended.
A: The 0.4mm radius reduces cutting pressure and is ideal for high-precision finishing where a fine surface finish and close tolerances are required.
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.