Mitsubishi SNMG120408 NX2525 Turning Insert | Cermet Finishing
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SNMG120408 NX2525
Mitsubishi Materials | High-Precision Cermet Finishing Specialist
The Mitsubishi SNMG120408 NX2525 is a high-performance cermet turning insert engineered for high-precision finishing. Utilizing the NX2525 micro-grain cermet grade, it offers an exceptional balance of toughness and wear resistance. Unlike standard carbide, this TiCN-based cermet has a low chemical affinity for steel, which prevents built-up edge (BUE) and allows for a superior mirror surface finish on carbon and alloy steels.
Packaging: Original Mitsubishi Box of 10 Inserts
ISO Designation Decoded
Square 90°
0° Relief
M-Class Tol.
Double Sided
12.7mm Size
4.76mm Thick
0.8mm Radius
Technical Specifications
| Feature | Metric Designation | Inch (ANSI) Designation |
|---|---|---|
| Model Name | SNMG120408 | SNMG 432 |
| Inscribed Circle ($IC$) | 12.7 mm | 0.500" (1/2") |
| Thickness ($S$) | 4.76 mm | 0.187" (3/16") |
| Corner Radius ($RE$) | 0.8 mm | 0.031" (1/32") |
NX2525 Cermet Advantage
The NX2525 cermet grade is Mitsubishi’s general-purpose finishing choice for steel. Composed of Titanium Carbonitride (TiCN) and metal binders, it maintains high hardness at extreme temperatures. This prevents crater wear and allows for high cutting speeds while maintaining dimensional accuracy across long production runs.
Finishing Chipbreaker Geometry
The SNMG geometry features a double-sided, 8-edged design for maximum economy. When paired with the NX2525 substrate, the chipbreaker is optimized for light to medium finishing. It ensures stable chip breaking even at small depths of cut, protecting the workpiece surface from scratches and reducing vibration during high-speed CNC turning.
Recommended Cutting Parameters
Optimized for Steel Finishing (Dry Machining Preferred)
| Material Group | Cutting Speed ($v_c$) | Feed Rate ($f$) | Depth of Cut ($a_p$) |
|---|---|---|---|
| Low Carbon Steel | 150 - 350 m/min | 0.05 - 0.25 mm/rev | 0.2 - 2.0 mm |
| Alloy Steel | 120 - 280 m/min | 0.05 - 0.20 mm/rev | 0.2 - 1.5 mm |
TOOL HOLDER COMPATIBILITY
Compatible with all standard PSSNR/L, DSBNR/L, and MSKNR/L 90° turning tool holders.
Shop Turning 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.