Tungaloy TNMG160408-TM T9115 Turning Insert
Professional High-Speed Steel Grade | TM Medium-Cutting | 0.8mm Stable Edge
What is the best carbide insert for high-productivity steel turning?
The Tungaloy TNMG160408-TM T9115 is a premium, double-sided triangular insert engineered for high-speed machining of carbon and alloy steels. Built with the T9115 CVD (Chemical Vapor Deposition) coating, it features Tungaloy's "PremiumTec" surface technology which provides exceptional crater wear resistance and thermal stability. The -TM chipbreaker is specifically designed for medium cutting applications, offering a balance of low cutting force and superior chip evacuation. 100% Made in Japan, this insert is the industrial choice for high-volume CNC production.
T9115 High-Velocity Grade
Specifically optimized for P15-grade steel machining. It thrives in high-temperature zones, maintaining edge sharpness longer than general-purpose grades.
TM All-Rounder Chipbreaker
The geometry is perfected for medium depths of cut. It effectively breaks chips to prevent tool wrapping and workpiece scratching.
0.8mm Corner Radius
Provides a robust cutting edge suitable for slightly higher feed rates and increased durability during semi-roughing to finishing stages.
Decoding TNMG 160408-TM Nomenclature
T
Tri
N
0°
M
Tol.
G
Hole
16
Size
04
Thk
08
0.8 Rad
-TM
Chip
3. Technical Data: Metric (ISO) vs. Imperial (ANSI)
| Technical Feature |
Metric (ISO) |
Imperial (ANSI) |
| Standard Model |
TNMG160408-TM |
TNMG 332-TM |
| Inscribed Circle (IC) |
9.525 mm |
3/8" |
| Thickness (S) |
4.76 mm |
3/16" |
| Corner Radius (RE) |
0.8 mm |
1/32" |
Recommended Cutting Parameters (Steel)
-
Cutting Speed (Vc): 180 - 380 m/min (High speed recommended)
-
Feed Rate (f): 0.15 - 0.45 mm/rev
-
Depth of Cut (ap): 0.8 - 4.5 mm
*Pro-Tip: T9115 is designed for speed. Maintaining a high surface speed (Vc) prevents built-up edge and improves the finish on carbon steels.*
4. Primary Applications
- Carbon Steel (S45C, 1045) turning.
- Alloy Steel (4140, SCM440) machining.
- Mass production of automotive and hydraulic components.
- Excellent for continuous cutting and high RPM operations.
5. Tool Compatibility
Standard ISO TNMG 1604 pockets. Optimized for use with MTJNR/L, WTJNR/L, or DTGNR/L tool holders. Compatible with Haas, Mazak, Doosan, and DMG Mori CNC machines.
7. Why Source from CNCHome-Beyond?
100% Original
Tungaloy Japan Stock
Expert B2B Support
Machining Expertise
Fast Global Delivery
Global Air Logistics
Genuine Packaging
Sealed Factory Boxes
Global Shop Feedback
⭐⭐⭐⭐⭐ "Speed Master" - James K., USA
"T9115 is incredible at high SFM. Our cycle time on 1045 steel shafts dropped by 20% compared to our previous brand."
⭐⭐⭐⭐⭐ "Authentic Quality" - Markus D., Germany
"Exactly as described. Authentic Tungaloy Japan inserts in sealed packs. The TM chipbreaker is very reliable for job shop work."
⭐⭐⭐⭐ "Consistent Tool Life" - Hiroshi S., Japan
"We run these lights-out. The wear pattern is extremely predictable, which is exactly what we need for automation."
⭐⭐⭐⭐⭐ "Great Service" - Carlos M., Mexico
"Beyond helped us find the right cutting speeds. Fast shipping and the inserts perform perfectly on our Mazak lathes."
⭐⭐⭐⭐⭐ "Stable and Strong" - Alistair M., UK
"The 0.8mm radius is very robust. Even with light scale on the workpiece, T9115 holds the edge well."
8. FAQ - Professional Support
Q: Can I use T9115 for machining stainless steel?
A: T9115 is optimized for Steel (P). For stainless steel (M), we strongly recommend the Tungaloy T6130 grade which handles heat and work-hardening better.
Q: Why choose the TM chipbreaker?
A: The -TM is the standard medium-cutting chipbreaker. It provides the most versatile performance across a wide range of feed rates and cutting depths.
Q: What is the benefit of CVD coating over PVD?
A: CVD coatings (like T9115) are thicker and offer much higher heat resistance, making them ideal for high-speed continuous turning in steel.
Tech Tip: Steel Machining Efficiency
The **T9115 CVD grade** is engineered with a thick Al2O3 layer that acts as a thermal barrier. In high-speed turning, heat stays in the chip, not the tool. Always verify your spindle limit to reach optimal **Vc** for mirror finishes. **Tungaloy Japan** - Excellence in Tooling.
© Technical Content by cnchome-beyond.com - Global CNC Tool Authority
