Mitsubishi TPGH090204L-FS NX2525 | Left-Hand Cermet Turning Insert
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TPGH090204L-FS NX2525
Mitsubishi Materials | High-Performance Mirror-Finish Cermet
The Mitsubishi TPGH090204L-FS NX2525 is a premium Left-Hand (L) cermet insert designed for high-speed finishing. Featuring the titanium-based NX2525 grade, this insert excels in chemical stability, preventing built-up edge (BUE) during CNC machining. The FS chipbreaker is engineered for ultra-fine precision, making it a critical long-tail precision tool for achieving mirror finishes on carbon and alloy steels.
11° Positive Relief | FS Super-Finish Geometry | Cermet P05-P20
Code Identification Breakdown
Triangular Shape
11° Positive Relief
G-Tolerance
Hole/Chip Feature
9mm Edge Length
2.38mm Thick
0.4mm Radius
Left-Hand
Super Finish
ISO (Metric) vs ANSI (Inch) Comparison
| Tech Detail | ISO (Metric) | ANSI (Inch) |
|---|---|---|
| Part Number | TPGH090204L-FS | TPGH 21.51L FS |
| Inscribed Circle | 5.56 mm | 0.219" (7/32") |
| Nose Radius | 0.4 mm | 0.016" (1/64") |
NX2525 Cermet Grade
The NX2525 Cermet grade is a specialized titanium-based composite. Cermet stays harder at higher speeds than tungsten carbide and has a very low affinity for steel. This ensures the lathe turning process remains precise with high dimensional stability and a brilliant surface finish.
FS Chipbreaker Advantage
The FS chipbreaker is a G-class finishing geometry with a high-positive rake. It is optimized for light cutting loads and excellent chip evacuation. It prevents stringy chips from scratching the workpiece, which is vital for internal boring and high-precision components.
Recommended Cutting Parameters
| Workpiece Material | Speed ($v_c$) | Feed ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Carbon & Alloy Steel | 150 - 350 m/min | 0.05 - 0.15 mm/rev | 0.1 - 1.0 mm |
| Ductile Cast Iron | 120 - 280 m/min | 0.08 - 0.20 mm/rev | 0.1 - 0.8 mm |
COMPATIBLE LEFT-HAND HOLDERS
This is a Left-Hand (L) insert. Use with standard STFPL or STGPL Left-Hand tool holders and boring bars.
Shop Boring Bars →
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.