Tungaloy TNMG160412-TM T9125 Turning Insert
High-Toughness CVD Grade | TM Medium-Cutting Geometry | 1.2mm Heavy-Duty Edge
What is the most reliable insert for interrupted steel turning?
The Tungaloy TNMG160412-TM T9125 is a high-performance, double-sided triangular carbide insert engineered specifically for versatility and durability in steel machining. Equipped with the T9125 CVD coating, this insert excels in environments with unstable setups or interrupted cuts where thermal and mechanical shocks are common. The 1.2mm corner radius provides exceptional edge strength, making it ideal for heavy-medium applications. 100% Made in Japan, it is the industrial solution for CNC professionals targeting reduced machine downtime and consistent tool life.
T9125 Toughened Grade
Balanced wear and fracture resistance. The premium CVD coating offers a thermal barrier that prevents crater wear even during high-heat operations.
TM All-Rounder Chipbreaker
The geometry is perfected for medium-duty cutting, providing stable chip breaking across a wide range of feed rates and depths of cut.
1.2mm Edge Stability
The reinforced radius is designed for high feed rates and roughing operations, offering maximum resistance against edge chipping.
Decoding TNMG 160412-TM Nomenclature
T
Tri
N
0°
M
Tol.
G
Hole
16
Size
04
Thk
12
1.2 Rad
-TM
Chip
3. Technical Data: Metric (ISO) vs. Imperial (ANSI)
| Feature |
Metric (ISO) |
Imperial (ANSI) |
| Standard Model |
TNMG160412-TM |
TNMG 333-TM |
| Inscribed Circle (IC) |
9.525 mm |
3/8" |
| Thickness (S) |
4.76 mm |
3/16" |
| Corner Radius (RE) |
1.2 mm |
3/64" |
Industrial Cutting Recommendations
-
Cutting Speed (Vc): 100 - 280 m/min (Highly efficient at 220 m/min)
-
Feed Rate (f): 0.20 - 0.50 mm/rev (Enhanced by 1.2mm radius)
-
Depth of Cut (ap): 1.0 - 5.0 mm
*Tech Tip: Use the T9125 grade when you encounter heavy scale or interrupted surfaces to avoid edge fracture.*
4. Primary Applications
- Medium-roughing of Large Steel Shafts.
- Machining of SCM440 and Carbon Steels (S45C).
- Automotive components with interrupted surfaces.
- Heavy-duty CNC turning where setup rigidity is low.
5. Tool Compatibility
Standard ISO/ANSI TNMG 1604 interface. Fits securely in MTJNR/L, WTJNR/L, or DTGNR/L tool holders. Engineered for Mazak, Haas, Okuma, and Doosan CNC machines.
7. Why Source from CNCHome-Beyond?
100% Genuine
Tungaloy Japan Stock
B2B Support
Technical Expertise
Express Logistics
Global Air Shipping
Quality Control
Sealed Original Boxes
Global Shop Feedback
⭐⭐⭐⭐⭐ "Extreme Toughness" - James K., USA
"T9125 handles interrupted cuts on large bolts better than any grade we've used. No edge chipping."
⭐⭐⭐⭐⭐ "Reliable B2B Source" - Markus D., Germany
"Authentic Tungaloy Japan inserts. Beyond always ships quickly. Tool life is very stable on our lathes."
⭐⭐⭐⭐ "Great for Roughing" - Hiroshi S., Japan
"The 1.2mm radius is perfect for taking heavy passes. T9125 grade is our standard for all steel turning."
⭐⭐⭐⭐⭐ "Quality Products" - Carlos M., Mexico
"Beyond helped us find the right chipbreaker for our production. These inserts work flawlessly on our Doosan machines."
⭐⭐⭐⭐⭐ "Predictable Wear" - Alistair M., UK
"Very low crater wear in high-heat situations. The T9125 is the stable horse of our CNC shop."
8. FAQ - Machine Shop Support
Q: Is T9125 better than T9115 for general turning?
A: T9125 is tougher and better for interrupted cuts or unstable setups. T9115 is harder and better for high-speed continuous cutting.
Q: What is the benefit of the 1.2mm radius?
A: It provides a stronger cutting edge for roughing and can handle higher feed rates compared to 0.4 or 0.8mm radii.
Q: Can I use this for stainless steel?
A: While it can cut stainless, it is optimized for Steel (P). For stainless (M), we recommend Tungaloy T6130 grade for better results.
Tech Tip: CVD Toughness Optimization
The **T9125 CVD grade** is the standard for stable production. By combining high toughness with high heat resistance, it prevents unexpected failure in heavy steel turning. **Tungaloy Japan** - Engineering the Future of Precision.
© Technical Content by cnchome-beyond.com - Global CNC Authority
