Tungaloy DNMG150404-TS NS9530 Cermet Insert
Mirror-Finish Excellence | Premium NS9530 Cermet | Made in Japan
How can I get a mirror finish on steel using a CNC lathe?
The Tungaloy DNMG150404-TS NS9530 is a specialized cermet turning insert designed for high-speed finishing of carbon and alloy steels. The NS9530 cermet grade provides superior resistance to built-up edge (BUE) and oxidation, allowing for much higher cutting speeds than traditional carbide. The -TS chipbreaker is specifically engineered for precision finishing, offering excellent chip control at light depths of cut. This Japan-made indexable turning tool is the professional CNC machining choice for those who demand tight tolerances and a brilliant surface shine. By utilizing this long-tail keywords optimized insert, your shop can reduce secondary polishing steps and extend tool life in high-precision cycles.
Decoding the DNMG150404-TS Technical Nomenclature
D
55° Rhombic
N
0° Clearance
M
M-Tolerance
G
Double Sided
15
15.5mm Edge
04
4.76mm Thick
04
0.4mm Radius
-TS
Finishing
Technical Specs: Metric vs. Imperial Comparison
| ISO Parameter |
Metric Unit |
Imperial Designation |
| ISO Model Name |
DNMG150404-TS |
DNMG431-TS |
| Inscribed Circle (IC) |
12.7 mm |
1/2 inch |
| Thickness (S) |
4.76 mm |
3/16 inch |
| Corner Radius (RE) |
0.4 mm |
1/64 inch |
Recommended Cutting Parameters (NS9530)
-
Cutting Speed (Vc): 150 - 350 m/min (Optimal for High-Speed Finishing)
-
Feed Rate (f): 0.05 - 0.25 mm/rev
-
Depth of Cut (ap): 0.2 - 1.5 mm
*Pro Tip: NS9530 works best without heavy shock. Ensure the setup is rigid to maximize the mirror-finish capabilities of the cermet.*
Global Machinist Feedback
⭐⭐⭐⭐⭐ "Mirror Surface" - James H., USA
"The surface Ra on our 1045 steel parts is incredible. The NS9530 grade gives a finish that looks like it was ground. Top-tier cermet."
⭐⭐⭐⭐⭐ "Zero Built-up Edge" - K. Schmidt, Germany
"Even at high speeds, the edge remains clean. This has significantly improved our dimensional consistency on finishing passes."
⭐⭐⭐⭐ "Great Chip Control" - Hiroshi Y., Japan
"The TS breaker is perfect for light cuts. No bird nesting at 0.1mm feed. Very reliable Japan-made quality."
⭐⭐⭐⭐⭐ "Excellent Value" - Fabrizio R., Italy
"Consistent tool life and very high surface quality. Cheaper than grinding for some components!"
⭐⭐⭐⭐⭐ "Highly Recommended" - S. Clarke, UK
"Tungaloy's NS9530 is my go-to for all aesthetic steel parts. Fast shipping and the inserts perform exactly as expected."
Technical Tooling Q&A
Q: Why choose Cermet over Carbide for finishing?
A: Cermet has lower chemical affinity with steel. This means less friction and no built-up edge, which is the secret to achieving a mirror-like surface finish.
Q: What is the maximum depth of cut for the TS breaker?
A: The TS is a finishing breaker. It performs best between 0.2mm and 1.5mm. For roughing, a -TM or -TH breaker in carbide is recommended.
Q: Is this insert suitable for interrupted cuts?
A: Cermet is more brittle than carbide. While NS9530 is quite tough, it is best suited for continuous finishing cuts rather than heavy interruptions.
Expert Comparison: Cermet vs. Carbide
In precision machining, NS9530 Cermet provides the aesthetic edge. While CVD Coated Carbide excels at strength and roughing, Cermet is the master of high-speed surface integrity. Protect your indexable turning tool by reserving this grade for final aesthetic passes.
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