Mitsubishi SPCG53Z NX2525 | High-Finish Cermet Milling Insert
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SPCG53Z NX2525
Mitsubishi Materials | The Mirror-Finish Cermet Authority
The Mitsubishi SPCG53Z NX2525 is a high-performance cermet milling insert specifically engineered for high-speed finishing operations. Utilizing the NX2525 grade, this insert combines the hardness of ceramic with the toughness of metal binders to deliver exceptional surface quality and dimensional accuracy. It is the definitive choice for dry milling of carbon steel, alloy steel, and cast iron when a mirror-like finish is required.
100% Genuine Mitsubishi Materials | Pack of 10 Inserts
ISO Designation Decoded
Square Shape
11° Relief Angle
C-Class Precision
W/Hole & Breaker
Size 15.875mm
4.76mm Thick
Wiper/Special
Dimensional Data
| Attribute | Metric (ISO) | Inch (ANSI) Equivalent |
|---|---|---|
| Model Reference | SPCG53Z | SPCG 43Z |
| Inscribed Circle ($IC$) | 15.875 mm | 0.625" |
| Thickness ($S$) | 4.76 mm | 0.187" |
| Precision Class | C-Class | C-Class |
NX2525: Cermet Excellence
The NX2525 grade is a premium uncoated cermet. It features an optimized microstructure with highly hardened Ti (Titanium) compound particles. This provides the insert with excellent resistance to plastic deformation and adhesion (built-up edge). Unlike traditional carbide, NX2525 excels in high-speed finishing, maintaining sharp edges and producing superior surface gloss on steel workpieces.
Wiper Effect Geometry
The "Z" in SPCG53Z indicates a specialized geometry often used for wiper finishing or specific edge preparation. This design ensures that the feed marks are minimized, allowing for extremely low $Ra$ values. It is ideal for dry cutting conditions where chip welding must be avoided to preserve the integrity of the finished surface.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed ($v_c$) | Feed per Tooth ($f_z$) | Condition |
|---|---|---|---|
| Low Carbon Steel | 250 - 300 m/min | 0.15 - 0.25 mm/t | Dry Only |
| Alloy Steel (4140) | 150 - 220 m/min | 0.10 - 0.20 mm/t | Dry Only |
| Gray Cast Iron | 130 - 200 m/min | 0.12 - 0.25 mm/t | Dry Only |
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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.