Mitsubishi TNMG160404R-2G NX2525 | Finishing Cermet Insert
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TNMG160404R-2G NX2525
Mitsubishi Materials | High-Speed Cermet Finishing Specialist
The Mitsubishi TNMG160404R-2G NX2525 is a high-performance Cermet turning insert engineered for ultra-fine finishing. Unlike standard carbide, the NX2525 Cermet grade provides exceptional resistance to oxidation and built-up edge, making it the ideal long-tail precision tool for achieving mirror finishes. The 2G chipbreaker and Right-Hand (R) geometry are optimized for light depths of cut in CNC machining of carbon and alloy steels.
High-Speed Finishing | Mirror Surface Quality | Right-Hand Orientation
Code Identification Breakdown
Triangular
0° Relief
Tolerance
Hole/Chip
16.5mm Edge
4.76mm Thick
0.4mm Radius
Right-Hand
Finishing Breaker
Metric (ISO) vs Inch (ANSI) Reference
| Technical Spec | ISO (Metric) | ANSI Equivalent |
|---|---|---|
| Part Number | TNMG160404R-2G | TNMG 331R 2G |
| IC Diameter | 9.525 mm | 0.375" (3/8") |
| Nose Radius | 0.4 mm | 0.016" (1/64") |
NX2525 Cermet Advantage
The NX2525 grade is a specialized titanium-based indexable turning insert material. It offers incredible thermal stability and lower affinity for steel, which prevents built-up edge (BUE). This grade is the industry standard for maintaining high dimensional accuracy over long production runs.
2G Fine-Finishing Breaker
The 2G chipbreaker is a precision geometry designed for very light finishing. It provides excellent chip control even at low depths of cut, ensuring that swarf is broken effectively to protect the workpiece surface finish during lathe turning operations.
Recommended Cutting Parameters
| Workpiece Material | Speed ($v_c$) | Feed per Rev ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Carbon/Alloy Steel | 150 - 350 m/min | 0.05 - 0.15 mm/rev | 0.1 - 1.0 mm |
| Nodular Cast Iron | 120 - 250 m/min | 0.08 - 0.20 mm/rev | 0.1 - 0.8 mm |
RIGHT-HAND HOLDER PAIRING
This insert is a Right-Hand (R) orientation. It requires standard MTJNR or WTJNR turning tool holders (Size 16).
Browse MTJNR 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.