Mitsubishi CNMG120408 NX2525 Cermet Turning Insert for Steel (10pcs)
30-Day Free Returns
Free Worldwide Shipping
CNMG120408 NX2525
High-Speed Finishing Specialist | NX2525 Cermet Grade | Surface Ra Perfection
The Cermet Advantage: Grade NX2525
NX2525 Cermet Grade: Mitsubishi’s NX2525 is a Titanium Carbonitride (TiCN) based cermet. Unlike tungsten carbide, cermet has a very low affinity for iron-based metals. This means the workpiece material doesn't stick to the edge, resulting in zero built-up edge (BUE) and a significantly brighter surface finish. It is the premier choice for finishing steel and stainless steel where Ra requirements are strict.
CNMG Geometry & Chip Control: This insert features a precision-molded chipbreaker designed for medium-to-finish turning. It provides excellent chip breaking even at lower depths of cut, preventing the "birds-nesting" of chips that can scratch a finished surface.
0.8mm (1/32") Universal Radius: The 08 radius is the "Golden Middle." It offers more edge security than a 0.4mm radius while still allowing for high surface speeds. This radius is ideal for high-productivity finishing cycles.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CNMG120408 | 12.7 mm | 4.76 mm | 0.80 mm |
| Imperial | CNMG432 | 1/2" | 3/16" | 0.0315" (1/32") |
Recommended Finishing Parameters
*Cermets require high speed (Vc) to perform correctly. For best surface quality, cut dry or with consistent flood coolant.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Low Carbon Steel (1018/1020) | 200 - 450 m/min | 0.10 - 0.25 mm/r | 0.30 - 2.00 mm |
| Alloy Steel (4140/8620) | 150 - 350 m/min | 0.10 - 0.20 mm/r | 0.30 - 1.50 mm |
Compatible Tool Holders
Maximum rigidity for DCLNR/L 12 and MCLNR/L 12 series Turning Tools:
Shop DCLNR 12 HoldersPro-Tip: Cermet (NX2525) vs. Coated Carbide (VP15TF)
NX2525 Cermet: Best for high-speed finishing where surface brightness and dimensional stability are critical. Not suitable for interrupted cuts or heavy roughing.
VP15TF Carbide: Best for general-purpose turning, interrupted cuts, or roughing. Carbide is tougher but cannot match the cermet surface finish at high speeds.
Search Keywords: CNMG120408 NX2525 price, Mitsubishi cermet inserts 10pcs, CNMG432 cermet, NX2525 speed and feed steel, high-finish turning insert.
Long-tail Keywords: Best cermet inserts for high surface finish on steel, Mitsubishi NX2525 cermet for high-speed CNC turning, CNMG 1204 series cermet finishing, buy Mitsubishi CNMG120408 online, non-coating cermet inserts for stainless finishing.