Tungaloy SNMG120408 NS9530 Square Cermet Turning Insert for High-Quality Steel Finishing

$51.72 USD

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Description

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

Technical FAQ & Buying Guide

Are your carbide inserts interchangeable with major brands like Sandvik, Iscar, or Kennametal?

Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.

How do I choose the correct insert grade and chipbreaker for machining Stainless Steel (M) vs. Carbon Steel (P)?

We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:

  • For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
  • For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
What are the recommended cutting speed (Vc) and feed rate (f) parameters to maximize tool life?

The optimal cutting parameters vary depending on the workpiece hardness and operation type:

  • For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
  • For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Do you offer bulk discounts or wholesale pricing for machine shops and distributors?

Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.

What is your international shipping policy and typical lead time for orders?

We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.

How do you guarantee the quality and tolerance precision of your CNC tools?

All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.