Tungaloy DCMT070202-PS NS9530 Turning Insert
Ultra-Fine Finishing Master | Premium NS9530 Cermet | Made in Japan
How can I achieve a high-gloss finish on steel without polishing?
The Tungaloy DCMT070202-PS NS9530 is a specialized cermet turning insert engineered for high-precision finishing where surface aesthetics are paramount. Utilizing the advanced NS9530 cermet grade, this insert offers superior chemical stability and resistance to built-up edge (BUE), which is the primary cause of dull surface finishes in steel. The -PS chipbreaker is specifically optimized for light-duty finishing, providing exceptional chip evacuation at very small depths of cut. This Japan-made indexable turning tool with a sharp 0.2mm radius is the ideal CNC machining solution for intricate components in the medical and watchmaking industries. By using this long-tail keywords optimized insert, you can ensure a consistent tool life and a brilliant mirror finish on every part.
Decoding the DCMT070202-PS Technical Nomenclature
D
55° Rhombic
C
7° Clearance
M
M-Tolerance
T
Hole & Screw
07
7.8mm Edge
02
2.38mm Thick
02
0.2mm Radius
-PS
Polish Style
Technical Specs: Metric vs. Imperial Comparison
| ISO Parameter |
Metric Unit |
Imperial Equiv. |
| ISO Model Name |
DCMT070202-PS |
DCMT21.50.5-PS |
| Inscribed Circle (IC) |
6.35 mm |
1/4 inch |
| Corner Radius (RE) |
0.2 mm |
0.008 inch |
Why is the NS9530 cermet better for steel finishing than carbide?
The NS9530 Grade is a premium cermet material that combines the hardness of ceramics with the toughness of metal. In precision machining, cermet is preferred for finishing because it has a lower chemical affinity for steel, meaning parts won't stick to the tool. The -PS chipbreaker (Polish Style) is designed with a very sharp edge and a specific rake profile to break chips even at depths as shallow as 0.1mm. For CNC machining operators, this indexable turning tool provides a significant advantage in maintaining Ra values and dimensional accuracy throughout long production runs without the frequent offsets required by traditional carbide.
Recommended Cutting Parameters (NS9530)
-
Cutting Speed (Vc): 150 - 350 m/min
-
Feed Rate (f): 0.03 - 0.12 mm/rev
-
Depth of Cut (ap): 0.1 - 1.0 mm
*Optimization Tip: Cermet performs best at high speeds. Ensure your machine can reach the recommended RPM to achieve the best surface shine.*
Feedback from Global Machinists
⭐⭐⭐⭐⭐ "Mirror Surface Success" - Liam W., USA
"The Ra finish on 1045 steel is incredible. The PS breaker handles light cuts much better than standard finishing inserts. No more stringy chips."
⭐⭐⭐⭐⭐ "Extreme Precision" - Hans M., Germany
"Tungaloy Japan quality. The 0.2mm radius is perfect for small intricate parts. Stable tool life and very sharp edge."
⭐⭐⭐⭐ "Great for Swiss Lathes" - Sato K., Japan
"Very low cutting force. Ideal for our precision CNC lathes when turning slender shafts. The cermet stays clean throughout the run."
⭐⭐⭐⭐⭐ "Better than Carbide" - Luca B., Italy
"Replaced my coated carbide with NS9530 for the final pass. The surface luster is night and day. Much brighter finish."
⭐⭐⭐⭐⭐ "Original & Reliable" - James P., UK
"Authentic Tungaloy. Fast delivery and perfect performance. These inserts are a staple for our finishing operations."
Technical Tooling Q&A
Q: Can I use this for stainless steel?
A: NS9530 is a steel specialist. While it can handle very light finishing on some stainless, we recommend a PVD carbide grade for sticky materials like 304 or 316.
Q: Does cermet require coolant?
A: Cermet has high heat resistance and can be used dry. However, for the best surface luster, a light flow of coolant helps evacuate chips and maintain temperature stability.
Q: What tool holder series fits this DCMT 0702?
A: This fits standard ISO holders like the SDJCR/L 1010 or 1212 series, and internal boring bars like S...-SDUCR07.
Expert Choice: Cermet vs. Coated Carbide
For precision machining, Cermet (NS9530) provides much higher resistance to chemical wear than Tungsten Carbide. If you need a mirror-finish surface and high dimensional repeatability, switching to cermet is the most cost-effective upgrade for your CNC shop.
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