Mitsubishi TNMG160404L-2G NX2525 | Left-Hand Cermet Finishing Insert
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TNMG160404L-2G NX2525
Mitsubishi Materials | The Mirror-Finish Specialist (Left-Hand)
Product Overview
The Mitsubishi TNMG160404L-2G NX2525 is a high-speed Cermet turning insert designed for Left-Hand (L) tool paths. Built with the advanced NX2525 grade, this titanium-based material offers unparalleled resistance to chemical wear and oxidation. As a premier long-tail precision tool, it is the industry standard for finishing steel components where a high-gloss surface and tight dimensional tolerances are required during CNC machining.
High-Speed Cermet | Left-Hand Geometry | 2G Precision Finish
Code Identification Breakdown
Triangular
0° Relief
Tolerance
Hole/Chip
16.5mm Edge
4.76mm Thick
0.4mm Radius
Left-Hand
Finish Breaker
Metric (ISO) vs Inch (ANSI) Equivalent
| Tech Specification | ISO Model (Metric) | ANSI Model (Inch) |
|---|---|---|
| Part Number | TNMG160404L-2G | TNMG 331L 2G |
| Inscribed Circle (IC) | 9.525 mm | 0.375" (3/8") |
| Nose Radius | 0.4 mm | 0.016" (1/64") |
NX2525 Cermet Grade
The NX2525 grade is a specialized titanium-based composite. Cermet offers higher hardness at high temperatures compared to tungsten carbide, effectively eliminating built-up edge (BUE). This makes it perfect for achieving "ready-to-ship" surface finishes directly from the lathe turning process.
2G Finish Geometry
The 2G chipbreaker is a G-class finishing geometry optimized for light cutting loads. It provides stable chip evacuation even at shallow depths of cut ($a_p$), preventing "bird-nesting" and protecting the workpiece from scratches.
Recommended Cutting Parameters
| Material Group | 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 |
| Ductile Cast Iron | 120 - 250 m/min | 0.08 - 0.20 mm/rev | 0.1 - 0.8 mm |
REQUIRED LEFT-HAND HOLDERS
This is a Left-Hand (L) insert. Use standard MTJNL 1616 or WTJNL 1616 holders.
Shop Left-Hand 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.