Tungaloy TCMT090204-24 NS9530 Turning Insert
Professional Steel Finishing | Premium NS9530 Cermet | 0.4mm Corner Radius
What is the best cermet insert for high-quality surface finishes?
The Tungaloy TCMT090204-24 NS9530 is a high-performance triangular turning insert designed specifically for finishing operations in ISO P (Steel) and ISO K (Cast Iron) materials. Utilizing the advanced NS9530 cermet grade, this tool provides exceptional chemical stability, effectively preventing built-up edge and oxidation at high cutting speeds. The -24 chipbreaker is engineered for light-to-medium finishing, ensuring smooth chip evacuation and reduced thermal load. 100% Made in Japan, it is the ideal solution for workshops demanding precision, longevity, and a mirror-like surface luster.
NS9530 Cermet Grade
A TiCN-based cermet grade offering a perfect balance of toughness and wear resistance. It maintains sharp cutting edges much longer than traditional carbide under finishing conditions.
-24 Universal Finishing Breaker
The -24 geometry features a specialized rake angle to reduce cutting forces, making it suitable for small-diameter boring and external turning on CNC lathes.
0.4mm Radius Versatility
The 0.4mm (04) corner radius provides a durable edge while achieving excellent Ra surface roughness values in most engineering steels.
Decoding TCMT090204-24 Technical Nomenclature
T
Triangular
C
7° Relief
M
Tolerance
T
Hole/Fix
09
9.6mm L
02
2.38mm Thk
04
0.4mm Rad.
-24
Chipbreaker
3. Technical Specifications: Metric vs. Imperial
| Parameter |
Metric (ISO) |
Imperial Equivalent |
| Cutting Edge Length (L) |
9.6 mm |
TCMT 1.8(1.5)1 |
| Inscribed Circle (IC) |
5.56 mm |
7/32" |
| Thickness (S) |
2.38 mm |
3/32" |
| Corner Radius (RE) |
0.4 mm |
1/64" |
Recommended Cutting Parameters (NS9530)
-
Cutting Speed (Vc): 120 - 280 m/min
-
Feed Rate (f): 0.05 - 0.25 mm/rev
-
Depth of Cut (ap): 0.2 - 2.0 mm
*Note: Cermet thrives in dry machining environments. Use air blow instead of liquid coolant to maximize surface finish and tool life.*
4. Product Applications
- High-speed finishing of carbon and alloy steels.
- Boring operations requiring high surface integrity.
- Automotive component precision turning.
- Sintered metal and cast iron finishing.
5. Tool Compatibility
Compatible with all standard Tungaloy / ISO boring bars and external turning tool holders designed for TCMT 0902 inserts (5.56mm IC).
7. Why Choose CNCHome-Beyond?
Genuine Tungaloy
100% Original Japanese stock
Industrial Support
Expert technical B2B advice
Fast Shipping
Global logistics for factories
Proven Supply
Consistent inventory availability
Global Professional Reviews
⭐⭐⭐⭐⭐ "Mirror Surface in 4140" - Thomas R., Germany
"The NS9530 cermet is a game changer for our steel shafts. The finish is mirror-like and the dimensional stability is perfect across 500 parts."
⭐⭐⭐⭐⭐ "Great Chip Control" - James B., USA
"The -24 breaker works wonders for fine boring. No more 'bird-nesting' chips. Excellent Tungaloy quality as always."
⭐⭐⭐⭐ "Very Stable Performance" - K. Tanaka, Japan
"Reliable results in alloy steel. The 0.4 radius is tough enough for the final pass. Original Japanese stock is a must."
⭐⭐⭐⭐⭐ "Trusted Source" - Lim H., Singapore
"Fast delivery from CNCHome-Beyond. These TCMT090204 inserts are original and significantly cheaper than local dealers."
⭐⭐⭐⭐⭐ "Outstanding Finish" - Alessandro G., Italy
"We switched from carbide to cermet for our finishing passes and the difference is night and day. Ra values are much better."
8. FAQ - CNC Professional Support
Q: Can I use coolant with NS9530 cermet?
A: It is generally recommended to run cermet dry or with air blow. Sudden cooling from liquid coolant can cause thermal shock and cracking in the cermet substrate.
Q: What makes -24 better than -PF chipbreakers?
A: The -24 is a versatile breaker that offers a balance between sharpness and edge strength, making it ideal for a wider range of steels compared to hyper-specialized breakers.
Q: Is this insert original Tungaloy?
A: Yes. We only supply 100% genuine Japanese-made Tungaloy products, ensuring the high-precision performance required for industrial production.
Expert Tip: Optimizing Cermet Life
The **NS9530 Cermet** is designed for the final "glory pass." It outperforms carbide at high speeds where heat is generated. For the ultimate surface finish, keep the feed rate consistent and avoid interrupted cuts, as cermet is more brittle than carbide. Trust **Tungaloy Japan** for precision engineering.
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