Mitsubishi TNMG220408 NX2525 | High-Finish Cermet Insert
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TNMG220408 NX2525
Mitsubishi Materials | Large-Scale High-Speed Cermet Expert
The Mitsubishi TNMG220408 NX2525 is a heavy-duty cermet turning insert engineered for high-precision finishing on larger components. Utilizing the advanced NX2525 titanium-based cermet grade, this insert provides exceptional chemical stability and resistance to built-up edge (BUE). As a long-tail precision tool, it is the premier choice for achieving a mirror-like surface finish on carbon and alloy steels in large CNC lathes.
Mirror Surface Quality | Large Size 22 Edge | High Oxidation Resistance
Code Identification Breakdown
Triangular
0° Relief
Tolerance
Double Sided
22mm Edge
4.76mm Thick
0.8mm Radius
Global Standard Reference
| Technical Feature | ISO (Metric) Model | ANSI (Inch) Equivalent |
|---|---|---|
| Model ID | TNMG220408 | TNMG 432 |
| Inscribed Circle (IC) | 12.7 mm | 0.500" |
| Nose Radius (RE) | 0.8 mm | 0.031" |
NX2525 Titanium Cermet
The NX2525 grade is a titanium-based cermet (ceramic-metal composite) that offers high chemical stability at high temperatures. Unlike standard tungsten carbide, this indexable turning insert does not easily weld to steel, preventing built-up edge and ensuring high-precision surface integrity and brightness.
TNMG Size 22 Geometry
The Size 22 (43x) platform is designed for larger tool holders, providing a massive heat sink and high structural rigidity. This allows for stable turning of larger diameters where vibration could otherwise ruin the surface finish. With 6 cutting edges, it offers superior cost-per-edge.
Recommended Cutting Parameters
| Material Group | Speed ($v_c$) | Feed per Rev ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Carbon Steel (S45C) | 180 - 380 m/min | 0.10 - 0.35 mm/rev | 0.3 - 2.5 mm |
| Alloy Steel (SCM) | 120 - 300 m/min | 0.10 - 0.30 mm/rev | 0.3 - 2.0 mm |
TOOL HOLDER COMPATIBILITY
Compatible with high-rigidity MTJNR/L or WTJNR/L tool holders (Size 22).
View Size 22 Tool Holders →
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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.