Mitsubishi TCMT16T308 NX2525 | Mirror Finish Cermet Turning Insert
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TCMT16T308 NX2525
Mitsubishi Materials | High-Efficiency Cermet for Precision Finishing
The Mitsubishi TCMT16T308 NX2525 is a high-performance cermet turning insert designed for steel finishing operations that require both superior surface gloss and increased edge durability. Utilizing the NX2525 uncoated cermet grade, this insert provides exceptional chemical stability at high speeds. This long-tail precision tool is your first choice for preventing built-up edge (BUE) and achieving mirror-finish results on carbon and alloy steels.
Cermet Technology | 0.8mm Radius | Genuine Mitsubishi Japan
ISO Designation Breakdown
Triangular Shape
7° Relief Angle
M-Class Tolerance
Fixing Hole
16.5mm Edge
3.97mm Thick
0.8mm Radius
Global Size Standards
| Parameter | 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" |
Grade: NX2525 Cermet
NX2525 is a high-purity uncoated cermet grade. By combining ceramic stability with metallic toughness, it provides an extremely sharp edge that stays keen longer than traditional carbide when finishing steel. Its resistance to chemical wear makes it ideal for high-speed CNC turning without the risk of workpiece smearing.
0.8mm Radius Strength
The 0.8mm nose radius ($RE$) significantly improves edge strength compared to the 0.4mm version. This allows for higher feed rates and greater stability during continuous cuts. The TCMT positive geometry ensures lower cutting forces, which is essential for indexable finishing inserts in light machining applications.
Recommended Cutting Data
| Material Group | Speed ($v_c$) | Feed ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Low Carbon Steel | 150 - 350 m/min | 0.10 - 0.25 mm/rev | 0.2 - 1.5 mm |
| Alloy Steel | 120 - 280 m/min | 0.08 - 0.20 mm/rev | 0.2 - 1.2 mm |
HOLDER COMPATIBILITY
Perfectly paired with STFCR/L boring bars and STGCR/L external turning tools.
Shop Matching Tool Holders →
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.