Tungaloy DCMT11T304-24 NS9530 Turning Insert
The Ultimate High-Gloss Specialist | Premium NS9530 Cermet | Made in Japan
What is the best cermet insert for high-speed steel finishing?
The Tungaloy DCMT11T304-24 NS9530 is a world-class cermet turning insert engineered specifically for achieving exceptional surface luster in steel applications. Unlike standard carbide, the NS9530 cermet grade utilizes a titanium-based ceramic-metal composite that offers incredible chemical stability and resistance to built-up edge (BUE). The -24 chipbreaker is a ground-geometry design that excels in light finishing to medium cutting, providing stable chip evacuation even at varying feed rates. This Japan-made indexable turning tool with a 0.4mm corner radius is the industry standard for CNC machining shops that require mirror-like finishes and tight dimensional tolerances. By integrating this long-tail keywords optimized solution into your production, you ensure maximum tool life and unmatched workpiece brightness.
Decoding the DCMT11T304-24 Technical Nomenclature
D
55° Rhombic
C
7° Clearance
M
M-Tolerance
T
Hole & Screw
11
11.6mm Edge
T3
3.97mm Thick
04
0.4mm Radius
-24
Finish Type
Technical Specs: Metric vs. Imperial Comparison
| ISO Parameter |
Metric Designation |
Imperial Designation |
| ISO/ANSI Model |
DCMT11T304-24 |
DCMT32.51-24 |
| Inscribed Circle (IC) |
9.525 mm |
3/8 inch |
| Thickness (S) |
3.97 mm |
5/32 inch |
| Corner Radius (RE) |
0.4 mm |
1/64 inch |
Why choose NS9530 cermet for precision machining?
The NS9530 Grade is a specialized cermet designed for high-speed finishing of carbon and alloy steels. In precision machining, the chemical inertness of cermet prevents the "smearing" of material onto the cutting edge, which is a common failure mode for carbide tools. The -24 chipbreaker is designed with a ground-periphery rake that handles varying depths of cut with consistent chip control. In CNC machining, this indexable turning tool allows for higher cutting speeds (Vc), resulting in reduced cycle times and better thermal management. For shops looking to improve their long-tail keywords ranking for quality steel output, this DCMT 11T3 insert is a non-negotiable tool in the arsenal.
Recommended Cutting Parameters (NS9530)
-
Cutting Speed (Vc): 150 - 350 m/min
-
Feed Rate (f): 0.05 - 0.20 mm/rev
-
Depth of Cut (ap): 0.2 - 1.5 mm
*Pro Tip: Cermet thrives on speed. If your machine can handle high RPM, don't be afraid to push the Vc for a better shine.*
Feedback from Global Machinists
⭐⭐⭐⭐⭐ "Mirror Surface Success" - David K., USA
"The Ra finish we get with the NS9530 on 4140 steel is incredible. It looks like the part was polished. Truly a mirror finish specialist."
⭐⭐⭐⭐⭐ "Extreme Speed" - M. Müller, Germany
"Ran these at 300m/min all day. The tool life is stable and the dimensions don't drift. Tungaloy Japan quality at its best."
⭐⭐⭐⭐ "Very Sharp" - Hiroshi S., Japan
"The -24 breaker works well for light-medium finishing. Very low cutting resistance. Stable for precision components."
⭐⭐⭐⭐⭐ "No Built-up Edge" - Luca G., Italy
"Carbon steel usually ruins my carbide tools quickly, but this cermet stays clean. Very satisfied with the stability."
⭐⭐⭐⭐⭐ "Authentic Quality" - Sarah J., UK
"Genuine Tungaloy inserts. Performance is exactly what the catalog promises. Fast shipping for our CNC production."
Technical Tooling Q&A
Q: Can I use this for finishing stainless steel?
A: While NS9530 is a steel specialist, it can handle light finishing on some stainless grades. However, for sticky materials, a PVD carbide might be more robust.
Q: Does cermet require coolant?
A: Cermet can be used dry due to high heat resistance. For surface finish, light coolant is fine, but avoid heavy thermal shock (interrupted flow).
Q: What tool holder fits this DCMT 11T3?
A: This fits standard ISO holders like the SDJCR/L or SDNCN series. Ensure your holder is in good condition for the best results.
Expert Tip: Cermet vs. Coated Carbide for Surface Luster
For precision machining, Cermet (NS9530) provides a much lower affinity to steel than Tungsten Carbide. This means zero built-up edge, resulting in the brilliant "high-gloss" finish that your customers expect on final components.
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