Tungaloy TNMG160412-TM T9125 CVD Carbide Turning Insert for Steel Interrupted Cutting - BEYOND

Tungaloy TNMG160412-TM T9125 CVD Carbide Turning Insert for Steel Interrupted Cutting

$74.52 USD

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Description

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
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

Technical FAQ & Buying Guide

Are your carbide inserts interchangeable with major brands like Sandvik, Iscar, or Kennametal?

Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.

How do I choose the correct insert grade and chipbreaker for machining Stainless Steel (M) vs. Carbon Steel (P)?

We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:

  • For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
  • For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
What are the recommended cutting speed (Vc) and feed rate (f) parameters to maximize tool life?

The optimal cutting parameters vary depending on the workpiece hardness and operation type:

  • For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
  • For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Do you offer bulk discounts or wholesale pricing for machine shops and distributors?

Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.

What is your international shipping policy and typical lead time for orders?

We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.

How do you guarantee the quality and tolerance precision of your CNC tools?

All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.