Tungaloy TNMG160404-37 NS9530 Turning Insert
High-Speed Surface Gloss | -37 Precision Chipbreaker | NS9530 Cermet Technology
How do I achieve a mirror-like surface on steel parts efficiently?
The Tungaloy TNMG160404-37 NS9530 is a high-performance triangular cermet insert specifically engineered for the high-speed finishing of carbon and alloy steels. Built with the NS9530 cermet grade, this tool offers exceptional chemical resistance and thermal stability, preventing built-up edge (BUE) and delivering a superior high-gloss finish. The -37 chipbreaker is specialized for light-duty finishing, providing excellent chip control at shallow depths of cut. 100% Made in Japan, it is the industrial standard for precision CNC turning operations requiring tight tolerances and aesthetic perfection.
NS9530 Cermet Grade
Titanium-based cermet with high fracture toughness. It maintains a sharp edge far longer than carbide in finishing applications, ensuring dimensional stability across large batches.
-37 Precision Chipbreaker
Designed for finishing to light cutting. Its geometry breaks chips reliably at low feed rates, preventing workpiece scratching and "birds-nesting" during automated cycles.
High Fracture Toughness
Unlike brittle cermets, NS9530 is engineered for resilience, making it capable of handling light interrupted cuts without edge chipping.
Decoding TNMG 160404-37 Nomenclature
T
Triangular
N
0° Relief
M
Tolerance
G
Chipbreaker
16
16mm L
04
4.76mm Thk
04
0.4mm Rad
-37
Finishing
3. Technical Specifications: Metric (ISO) vs. Imperial (ANSI)
| Technical Feature |
Metric (ISO) |
Imperial (ANSI) |
| Standard Model |
TNMG160404-37 |
TNMG 331-37 |
| Inscribed Circle (IC) |
9.525 mm |
3/8" |
| Thickness (S) |
4.76 mm |
3/16" |
| Corner Radius (RE) |
0.4 mm |
1/64" |
Recommended Finishing Parameters
-
Cutting Speed (Vc): 150 - 380 m/min (Maintain high speed for mirror luster)
-
Feed Rate (f): 0.05 - 0.25 mm/rev
-
Depth of Cut (ap): 0.2 - 1.5 mm
*Pro-Tip: Cermet performs best in dry cutting conditions. High surface speeds are essential to activate the "burnishing" effect of the NS9530 grade.*
4. Primary Applications
- High-precision finish turning of carbon steels (e.g., 1045).
- Final dimensioning of alloy steel components.
- Automotive shafts and valves requiring ultra-smooth Ra values.
- Boring operations where high gloss is required.
5. Equipment Compatibility
Standard fit for TN** 1604 triangular pockets. Fully compatible with MTJNR/L, WTJNR/L, and DTGNR/L holders. Perfect for CNC lathes with high spindle speeds.
7. Why Source from CNCHome-Beyond?
Genuine Tungaloy
100% Original Japan Stock
Industrial Support
Technical Machining Advice
B2B Logistics
Fast Global Express Delivery
Factory Sealed
Verified Original Packaging
Reviews from Professional Machine Shops
⭐⭐⭐⭐⭐ "Mirror Finish on 4140 Steel" - Markus H., Germany
"Using the -37 chipbreaker on alloy steel finishing passes. The Ra value is incredible. The luster looks like it was polished. Beyond provided fast shipping."
⭐⭐⭐⭐⭐ "Consistent and Sharp" - James K., USA
"Original Tungaloy stock. Switched to NS9530 for our automotive shafts. Dimensional stability is much better than our previous carbide inserts."
⭐⭐⭐⭐ "Great Chip Control" - Alessandro R., Italy
"Handles low feeds perfectly. No more 'bird-nest' chips wrapping around the spindle. High-quality cermet."
⭐⭐⭐⭐⭐ "Authentic Japan Quality" - S. Nakamura, Japan
"Factory sealed box. The -37 geometry is very sharp. Excellent for final finishing on CNC lathes."
⭐⭐⭐⭐⭐ "Best B2B Price" - Rajesh V., India
"Reliable supplier for our workshop. The technical specs were accurate and the performance is top-tier."
8. FAQ - Professional Support
Q: Why choose cermet over coated carbide for finishing?
A: Cermet (NS9530) has a much lower chemical affinity for steel, which means it doesn't "stick" to the metal. This results in a significantly higher gloss finish and less edge wear.
Q: Is the -37 chipbreaker suitable for heavy roughing?
A: No. The -37 chipbreaker is specifically designed for finishing and light cutting. For roughing, we recommend the -38 or -33 geometries in carbide grades.
Tech Tip: Achieving High Surface Gloss
To maximize the performance of **NS9530**, use dry cutting for the final pass. This allows the cermet's thermal properties to burnish the steel surface. **Tungaloy Japan** - Excellence in precision surface technology.
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