Tungaloy SNMG120408-TM T9115 Carbide Turning Insert for Steel Machining

$80.46 USD

Price shown is a starting point. Contact us for a precise quote based on your requirements.

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Description

Tungaloy SNMG120408-TM T9115 Turning Insert

High-Speed Steel Machining | Premium T9115 CVD Grade | Versatile -TM Chipbreaker

How can I improve tool life in high-speed steel turning?

The Tungaloy SNMG120408-TM T9115 is a high-performance double-sided carbide insert specifically engineered for ISO P (Steel) applications. Featuring the industry-leading T9115 CVD coated grade, this insert excels in high-velocity continuous cutting and light interrupted cutting conditions. The -TM chipbreaker is Tungaloy's standard "Medium" geometry, providing exceptional chip control across a wide range of feed rates and depths of cut. 100% Made in Japan, it delivers the thermal stability and edge toughness required for modern CNC productivity.

T9115 CVD Coating

Utilizes a thick Al2O3 layer for superior heat resistance. This allows for increased cutting speeds (Vc) without accelerated crater wear, maintaining precision over long runs.

-TM Standard Geometry

The "Standard" medium chipbreaker is highly versatile. It balances cutting resistance with chip breaking efficiency, preventing "nesting" in various steel alloys.

PremiumTec Surface

Tungaloy’s specialized post-treatment smooths the coating surface, drastically reducing friction and preventing metal welding (built-up edge) on the tool.

Decoding SNMG120408-TM Technical Nomenclature

S
Square
N
0° Relief
M
Tolerance
G
Hole/Fix
12
12.7mm Size
04
4.76mm Thick
08
0.8mm Rad.
-TM
Med. Breaker

3. Technical Specifications: Metric vs. Imperial

Parameter Metric (ISO) Imperial Equivalent
Inscribed Circle (IC) 12.7 mm 1/2" (SNMG 432)
Thickness (S) 4.76 mm 3/16"
Corner Radius (RE) 0.8 mm 1/32"
Grade Substrate T9115 (CVD) Steel Machining Expert

Recommended Cutting Parameters (T9115 Grade)

  • Cutting Speed (Vc): 150 - 350 m/min (Standard Steel)
  • Feed Rate (f): 0.15 - 0.50 mm/rev
  • Depth of Cut (ap): 1.0 - 5.0 mm

*Note: T9115 is optimized for high velocities. For the best chip breaking with the -TM geometry, ensure the feed rate is above 0.20 mm/rev.*

4. Product Applications

  • External turning of carbon steel, alloy steel, and structural steel.
  • High-efficiency medium cutting of automotive and industrial parts.
  • Suitable for high-speed continuous to light interrupted machining.
  • B2B heavy industry manufacturing where tool life is a priority.

5. Tool Compatibility

Compatible with all Standard ISO Turning Holders (MCLNR, PSSNR, PSKNR series). Fits standard SNMG 1204 pockets. Ideal for top-clamp or lever-lock systems.

7. Why Choose CNCHome-Beyond?

Genuine Tungaloy
100% Original Japan Import
Industrial Support
Professional CNC Expertise
Fast Shipping
Secure Global B2B Logistics
Large Inventory
Ready for Bulk Factory Orders

What Global Machinists Are Saying

⭐⭐⭐⭐⭐ "Workhorse of the Shop" - Mark T., USA
"We use the SNMG120408-TM T9115 for nearly all our medium steel turning. It's incredibly consistent and the T9115 coating holds up even when we push the speed."

⭐⭐⭐⭐⭐ "Outstanding Tool Life" - D. Fischer, Germany
"Original Tungaloy quality. We've seen a 25% increase in tool life compared to our previous CVD grade. Highly recommend for high-speed machining."

⭐⭐⭐⭐ "Great Chip Control" - K. Sato, Japan
"The -TM breaker works beautifully across different depths. Stable, predictable, and reliable. Made in Japan excellence."

⭐⭐⭐⭐⭐ "Perfect B2B Partner" - L. Tan, Singapore
"CNCHome-Beyond provided fast shipping and genuine parts. The technical data provided made it easy to set up our machines."

⭐⭐⭐⭐⭐ "Reliable for Alloy Steel" - A. Rossi, Italy
"No issues with built-up edge even after hours of continuous cutting. The surface finish remains excellent for a medium breaker."

8. FAQ - Professional Support

Q: Is T9115 suitable for Stainless Steel?

A: T9115 is optimized for ISO P (Steel). For Stainless Steel (ISO M), we recommend Tungaloy's T6120 or T6130 grades for better results.

Q: Does this fit SNMG 432 holders?

A: Yes. SNMG 120408 is the metric equivalent of the Imperial SNMG 432 size. They are fully compatible with standard 1/2" IC holders.

Q: What is the benefit of the 0.8mm radius (08)?

A: The 0.8mm radius provides better edge strength and higher feed rate potential than the 0.4mm, making it ideal for standard medium turning.

Industrial Tip: When to choose T9115 vs T9215

The **T9115 grade** is a proven standard for high-speed steel turning. If your application involves high heat and high-velocity continuous cutting, the thermal barrier of T9115 is your best friend. For even higher toughness in interrupted cuts, consider the newer T9215 series. Trust **Tungaloy Japan** for world-leading steel machining productivity.

© Technical Data by cnchome-beyond.com - CNC Tool 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.