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 →
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This Mitsubishi insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.