Tungaloy SNMG120408 NS9530 Insert
Premium Cermet Turning | Mirror Surface Finish | NS9530 High-Gloss Grade
What is the best cermet insert for high-speed steel turning?
The Tungaloy SNMG120408 NS9530 is a high-performance, double-sided square turning insert designed specifically for achieving superior surface quality in ISO P (Steel) applications. Utilizing the advanced NS9530 Cermet grade, this insert offers incredible thermal stability and a low affinity for steel, which prevents built-up edge (BUE) and delivers a high-gloss finish. Unlike standard carbide, this Made in Japan cermet maintains a sharp cutting edge at higher speeds, making it the ideal choice for final finishing passes where dimensional precision is critical.
NS9530 Cermet Grade
A sophisticated Ceramic-Metal composite that provides extreme hardness and heat resistance, outperforming carbide in high-speed finishing of carbon and alloy steels.
Reinforced 0.8mm Radius
The 0.8mm corner radius offers a perfect balance of edge strength and surface finish, allowing for slightly higher feed rates than a 0.4mm radius while maintaining gloss.
Precision Ground Edge
Double-sided 8-edge design provides excellent cost-per-edge efficiency. Each edge is precision ground to ensure micro-meter level accuracy during CNC operations.
Decoding SNMG120408 Technical Nomenclature
S
Square
N
0° Relief
M
Tolerance
G
Hole/Fix
12
12.7mm Size
04
4.76mm Thick
08
0.8mm Rad.
3. Technical Specifications: Metric vs. Imperial
| Parameter |
Metric (ISO) |
Imperial Equivalent |
| Insert Size (Inscribed Circle) |
12.7 mm |
1/2" (SNMG 432) |
| Thickness |
4.76 mm |
3/16" |
| Corner Radius |
0.8 mm |
1/32" |
| Cermet Grade |
NS9530 |
Premium Finish Grade |
Recommended Cutting Parameters (NS9530)
-
Cutting Speed (Vc): 150 - 400 m/min (Ideally run at 200+ for best gloss)
-
Feed Rate (f): 0.10 - 0.35 mm/rev
-
Depth of Cut (ap): 0.5 - 2.0 mm (Optimal finishing range)
*Pro Tip: For a high-gloss surface, maintain high Vc and keep the tool path consistent. Cermets perform best in dry machining conditions.*
4. Product Applications
- High-precision finishing of carbon and alloy steel.
- Final surface machining of automotive engine components.
- Machining small diameter shafts where mirror finish is required.
- B2B industrial production requiring tight tolerance control.
5. Holder Compatibility
Universal fit for standard ISO Turning Holders (External: DSBNR/L, PSSNR/L; Internal Boring Bars: S...-PSSNR/L). Fully compatible with SNMG 1204 pockets on all major CNC Lathe brands.
7. Why Choose CNCHome-Beyond?
Genuine Japan
100% Original Tungaloy
CNC Specialists
Technical Support Experts
B2B Logistics
Express International Delivery
Industrial Supply
Authentic Packaging & Labels
Professional Machinist Feedback
⭐⭐⭐⭐⭐ "Flawless Surface" - David R., USA
"The NS9530 is my favorite for finishing. I ran it on 4140 steel and the surface looked like it had been polished. Incredible cermet quality."
⭐⭐⭐⭐⭐ "Great Heat Resistance" - M. Schmidt, Germany
"We run these at high speeds in our production line. Even after hours of cutting, the edge stays sharp. Fast shipping from this store."
⭐⭐⭐⭐ "Very Stable" - H. Sato, Japan
"Consistent performance across all 10 inserts in the box. Dimensional accuracy is exactly as expected from Tungaloy Japan."
⭐⭐⭐⭐⭐ "Perfect for B2B" - F. Rossi, Italy
"Original products. We use these for our automotive factory contracts. Reliable delivery and very professional packaging."
⭐⭐⭐⭐⭐ "Beautiful Finish" - S. Tan, Singapore
"The 0.8mm radius is very strong. I can push the feed a bit more and still get a mirror-like surface on mild steel."
8. FAQ - Turning Center Support
Q: Is NS9530 better than carbide for steel finishing?
A: Yes. Cermet has a much lower affinity for steel chips, meaning you won't get "smearing" or built-up edge, resulting in a significantly brighter finish.
Q: Can I use this for heavy roughing?
A: Cermets are brittle compared to carbide. We recommend using these for medium to fine finishing. For heavy roughing, please check our T9200 carbide series.
Q: Does this fit SNMG 432 tool holders?
A: Yes, SNMG 120408 is the metric equivalent to the Imperial SNMG 432 size.
Machinist Tip: Cermet Finishing Secret
The NS9530 grade is designed for high-heat environments. To maximize surface gloss, do not be afraid to increase your cutting speed (Vc) to 250 m/min or higher. The ceramic particles in the cermet will maintain a sharp, clean edge that carbide simply cannot match. Trust Tungaloy Japan for your most critical finishing work. Experience the "Mirror Cut" today.
© Technical Data by cnchome-beyond.com - CNC Industrial Authority
