Tungaloy TNGG160408L-W NS9530 Wiper Insert
Mirror Finishing | -W Wiper Geometry | NS9530 Premium Cermet
How to achieve mirror surface finishes at double the feed rate?
The Tungaloy TNGG160408L-W NS9530 is a specialized left-hand cermet insert designed for high-efficiency finishing of steel. By incorporating the -W Wiper geometry, this insert allows CNC machinists to significantly increase feed rates without the typical degradation in surface quality. The NS9530 cermet grade provides superior thermal stability and chemical resistance, ensuring a glossy finish and long tool life on carbon and alloy steels. 100% Made in Japan, it is the ultimate solution for high-productivity precision turning.
Wiper Edge (-W)
The curved wiper edge "burnishes" the material as it passes, allowing for much higher feed rates than standard radius inserts while achieving equal or better Ra values.
NS9530 Cermet Grade
A titanium-based grade that excels in high-speed finishing. Its low affinity for steel prevents built-up edge (BUE), maintaining a sharp, consistent cutting edge.
High Toughness
Unlike traditional cermets, NS9530 offers improved fracture resistance, making it reliable even in continuous finishing operations with slight fluctuations.
Decoding TNGG 160408L-W Nomenclature
T
Triangular
N
0° Relief
G
Tolerance
G
Ground
16
16mm L
04
4.76mm Thk
08
0.8mm Rad
L-W
Left/Wiper
3. Technical Data: Metric (ISO) vs. Imperial (ANSI)
| Technical Parameter |
Metric (ISO) |
Imperial (ANSI) |
| Standard Model |
TNGG160408L-W |
TNGG 332L-W |
| Inscribed Circle (IC) |
9.525 mm |
3/8" |
| Thickness (S) |
4.76 mm |
3/16" |
| Corner Radius (RE) |
0.8 mm |
1/32" |
Recommended Parameters
-
Cutting Speed (Vc): 150 - 350 m/min (Balanced Finishing)
-
Feed Rate (f): 0.15 - 0.40 mm/rev (Wiper Efficiency Zone)
-
Depth of Cut (ap): 0.2 - 1.5 mm
*B2B Pro-Tip: To get the full benefit of the Wiper edge, ensure your feed rate is at least 2 times higher than what you would use for a standard radius insert.*
4. Primary Applications
- High-efficiency finish turning of carbon and alloy steels.
- Final dimensioning of mass-produced automotive parts.
- Achieving ground-quality Ra values on CNC lathes.
- Stable cutting in automated production lines.
5. Tool Compatibility
Standard fit for TN** 1604 pockets. Pairs with WTJNL or MTJNL Left-hand external holders and S-WTJNL internal boring bars.
7. Why Source from CNCHome-Beyond?
Genuine Tungaloy
100% Original Japan Stock
Wiper Expertise
Productivity Optimization
Global Logistics
Secure B2B Express Shipping
Quality Verified
Sealed Original Packaging
Reviews from Professional Workshops
⭐⭐⭐⭐⭐ "Drastic Cycle Time Reduction" - Gary T., USA
"The -W wiper edge is a total game changer. We doubled our feed rate on finishing passes for our steel shafts and the surface gloss is better than before. Excellent tool life with NS9530."
⭐⭐⭐⭐⭐ "Perfect for Bearing Surfaces" - Heinrich B., Germany
"Original Tungaloy Japan quality. The Ra values are so low we've eliminated a grinding operation on some parts. Very stable in our automated machines."
⭐⭐⭐⭐ "Great Chip Control" - K. Saito, Japan
"Consistent wear batches. The wiper geometry handles the chips beautifully even at high speeds. Highly recommended source."
⭐⭐⭐⭐⭐ "Mirror Finish Every Time" - Luca M., Italy
"Authentic inserts, fast shipping. The finish luster on alloy steel is exactly what our clients expect."
⭐⭐⭐⭐⭐ "Top Choice for Finishing" - Rajesh P., India
"NS9530 is very stable. Even at 300 m/min, the edge stays sharp. Best wiper insert we have tested so far."
8. FAQ - Professional Support
Q: Why use a 0.8mm radius instead of 0.4mm for finishing?
A: The 0.8mm radius (08) offers greater edge strength and allows for even higher feed rates when combined with the wiper geometry, without sacrificing surface finish.
Q: Is NS9530 better than carbide for steel?
A: Yes. Cermet (NS9530) has a much lower chemical affinity for steel, preventing built-up edge and oxidation, which results in a significantly higher gloss finish.
Tech Tip: Cermet Wiper Handling
Cermet is more brittle than carbide. For best results with **NS9530**, avoid heavy intermittent cuts and ensure high spindle speeds. The **Wiper edge** works best when pushed with high feeds. **Tungaloy Japan** - Excellence in precision surface technology.
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