Mitsubishi TCMT16T308 VP15TF | Miracle Coated Carbide Turning Insert
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TCMT16T308 VP15TF
Mitsubishi Materials | The Legendary "Miracle Grade" Universal Specialist
The Mitsubishi TCMT16T308 VP15TF is a high-toughness PVD coated carbide insert engineered for versatile performance across ISO P, M, K, and S material groups. Utilizing the world-renowned VP15TF Miracle Coating, this insert provides a superior thermal barrier and resistance to notch wear. As a critical long-tail precision tool, its 0.8mm nose radius ensures maximum edge strength for stable turning in both continuous and slightly interrupted cuts.
AlTiN Miracle Coating | 0.8mm Edge Strength | Universal Application
Specification Breakdown
Triangular Shape
7° Relief Angle
M-Class Tolerance
Chipbreaker/Hole
16.5mm Edge
3.97mm Thick
0.8mm Radius
Metric vs. Inch Comparison
| Attribute | ISO (Metric) | ANSI (Inch) Equivalent |
|---|---|---|
| Model Reference | TCMT16T308 | TCMT 32.52 |
| Inscribed Circle (IC) | 9.525 mm | 0.375" |
| Thickness (S) | 3.97 mm | 0.156" |
| Nose Radius (RE) | 0.8 mm | 0.031" |
VP15TF Miracle Grade Technology
The VP15TF grade is a carbon-rich AlTiN-based PVD coating that creates a smooth surface to prevent built-up edge (BUE). This material technology is ideal for stainless steel turning and alloy steels, providing a substrate that is tough enough to resist micro-chipping while maintaining a high hardness for wear resistance.
Reinforced Corner Strength
Featuring a 0.8mm nose radius, this indexable turning insert is built for semi-roughing to medium finishing. It allows for higher feed rates and provides significantly more stability in interrupted cuts compared to 0.4mm alternatives, ensuring reliable chip evacuation in tough materials.
Technical Cutting Data
| Material Group | Cutting Speed ($v_c$) | Feed per Rev ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Carbon/Alloy Steel | 100 - 250 m/min | 0.15 - 0.40 mm/rev | 0.5 - 3.0 mm |
| Stainless Steel (304/316) | 80 - 180 m/min | 0.12 - 0.30 mm/rev | 0.5 - 2.5 mm |
PRECISION HOLDER MATCHING
This insert fits all standard STFCR/L boring bars and external STGCR/L tool holders (Size 16).
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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.