Mitsubishi SNMG120404 NX2525 Turning Insert | Mirror Finish Cermet
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SNMG120404 NX2525
Mitsubishi Materials | The Standard for High-Precision Cermet Finishing
The Mitsubishi SNMG120404 NX2525 is a premium cermet turning insert engineered for high-speed precision finishing. The NX2525 grade is a TiCN-based cermet that provides an excellent balance of toughness and wear resistance. Unlike standard carbide, this cermet grade features a low chemical affinity for steel, which prevents built-up edge (BUE) and results in an exceptional mirror surface finish on carbon and alloy steel components.
Condition: 100% Genuine Mitsubishi | Box of 10
ISO Designation Decoded
Square 90°
0° Relief
M-Class Tol.
Double Sided
12.7mm Size
4.76mm Thick
0.4mm Radius
Dimension Specifications
| Specification | Metric (ISO) | Inch (ANSI) Equivalent |
|---|---|---|
| Model Name | SNMG120404 | SNMG 431 |
| Inscribed Circle ($IC$) | 12.7 mm | 0.500" (1/2") |
| Thickness ($S$) | 4.76 mm | 0.187" (3/16") |
| Corner Radius ($RE$) | 0.4 mm | 0.016" (1/64") |
NX2525 Cermet Material
The NX2525 grade is Mitsubishi's micro-grain cermet (Ceramic-Metal). It is optimized for ISO P25 steel applications. Cermet provides superior crater wear resistance compared to standard carbide. Because it resists heat better than tungsten carbide, it maintains sharp cutting edges at high cutting speeds, making it the top choice for precision steel finishing.
Finishing Chipbreaker
The SNMG geometry features a double-sided, 8-edged design for maximum economy. The integrated chipbreaker is designed for light finishing. It ensures effective chip breaking even at small depths of cut, preventing long, stringy chips from scratching the workpiece surface during high-precision CNC turning.
Recommended Cutting Parameters
Target: Superior Surface Quality (NX2525 Cermet)
| Workpiece Material | Cutting Speed ($v_c$) | Feed Rate ($f$) | Depth of Cut ($a_p$) |
|---|---|---|---|
| Low Carbon Steel | 180 - 320 m/min | 0.05 - 0.20 mm/rev | 0.2 - 1.5 mm |
| Alloy Steel | 150 - 280 m/min | 0.05 - 0.15 mm/rev | 0.2 - 1.0 mm |
SYSTEM COMPATIBILITY
Optimized for use with standard PSSNR/L, DSBNR/L, or MSKNR/L 90° turning tool holders.
Find Compatible 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.