Mitsubishi TNMG160408 NX2525 | High-Finish Cermet Insert
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TNMG160408 NX2525
Mitsubishi Materials | The Mirror-Finish Cermet Authority
The Mitsubishi TNMG160408 NX2525 is a high-performance cermet turning insert engineered for precision finishing operations. Utilizing the advanced NX2525 titanium-based cermet grade, this tool excels in high-speed finishing of carbon and alloy steels. It provides superior chemical stability and resistance to oxidation, making it the premier long-tail precision tool for achieving a mirror-like surface finish that traditional carbide grades cannot match.
Surface Brilliance | Titanium Cermet | High Speed Efficiency
Code Identification Breakdown
Triangular Shape
0° Relief Angle
M-Class Tolerance
Cylindrical Hole
16.5mm Edge
4.76mm Thick
0.8mm Radius
Metric & Inch Standards Comparison
| Specification | ISO (Metric) | ANSI (Inch) Equivalent |
|---|---|---|
| Model ID | TNMG160408 | TNMG 332 |
| Inscribed Circle (IC) | 9.525 mm | 0.375" |
| Nose Radius (RE) | 0.8 mm | 0.031" |
NX2525 Cermet Grade
The NX2525 grade is a composite material of ceramic and metal (Cermet). It provides superior resistance to built-up edge (BUE) compared to standard carbide. Because cermet has a low affinity for steel, this indexable turning insert maintains a sharp cutting edge for longer, ensuring mirror-finish results and tight dimensional tolerances.
TNMG General Geometry
The TNMG 6-edged design offers exceptional cost-performance for CNC finishing. The 0.8mm radius provides increased edge strength over the 0.4mm version, allowing for slightly higher feed rates while maintaining a high surface finish quality. This is the "workhorse" geometry for stable finishing passes.
Recommended Cutting Parameters
| Material Group | Speed ($v_c$) | Feed per Rev ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Carbon/Alloy Steel | 150 - 350 m/min | 0.10 - 0.30 mm/rev | 0.3 - 2.0 mm |
| Pre-hardened Steel | 100 - 200 m/min | 0.10 - 0.25 mm/rev | 0.3 - 1.5 mm |
TOOL HOLDER COMPATIBILITY
Optimized for standard MTJNR/L or WTJNR/L external turning tool holders (Size 16).
View Size 16 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.