Mitsubishi TPGX090202L NX2525 | Left-Hand Cermet Finishing Insert
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TPGX090202L NX2525
Mitsubishi Materials | Precision Steel Finishing Cermet (Left-Hand)
Super-Precision Mirror Finishing
The Mitsubishi TPGX090202L NX2525 is a Left-Hand (L) high-precision G-Class (Ground) Cermet insert. Specifically engineered for the high-speed finishing of carbon and alloy steels, the NX2525 Cermet grade provides exceptional chemical stability. By resisting "Built-Up Edge" (BUE) and oxidation, this long-tail precision tool is the premier choice for CNC boring and finishing where dimensional accuracy and a high-gloss surface finish are critical.
NX2525 Cermet Technology | 11° Positive Relief | 0.2mm Precision Radius
Technical Code Identification
Triangular Shape
11° Positive Relief
G-Class (Precision Ground)
Special Specification
9mm Edge Length
2.38mm Thick
0.2mm Radius
Left-Hand
ISO (Metric) vs ANSI (Inch) Reference
| Technical Spec | ISO Model (Metric) | ANSI Model (Inch) |
|---|---|---|
| Part Number | TPGX090202L | TPGX 21.50.5L |
| Inscribed Circle (IC) | 5.56 mm | 0.219" (7/32") |
| Corner Radius | 0.2 mm | 0.008" |
NX2525 Cermet Performance
NX2525 is Mitsubishi's premium Cermet grade. By utilizing TiCN-based materials, it achieves high hardness and chemical stability. This results in a sharp cutting edge that resists oxidation at high speeds, providing the "gloss" finish required in high-end automotive and aerospace steel parts.
TPGX Precision Ground
The "G" in TPGX signifies a periphery ground tolerance. Unlike M-class pressed inserts, the TPGX series is ground to strict specifications, ensuring minimal run-out in boring bar applications and perfectly consistent chip control.
Recommended Cutting Parameters
| Workpiece Material | Speed ($v_c$) | Feed ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Low Carbon Steel (1018/1045) | 150 - 350 m/min | 0.03 - 0.10 mm/rev | 0.05 - 0.5 mm |
| Alloy Steel (4140/8620) | 120 - 280 m/min | 0.03 - 0.08 mm/rev | 0.05 - 0.4 mm |
COMPATIBLE LEFT-HAND HOLDERS
Designed for Left-Hand (L) tool paths. Pairs with STFPL or STGPL style boring bars.
View Compatible Tooling →
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.