Tungaloy SNMG120404-TM T9115 Carbide Turning Insert for Steel Machining

$80.46 USD

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Description

Tungaloy SNMG120404-TM T9115 Turning Insert

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

What is the best insert for high-speed steel turning and medium cutting?

The Tungaloy SNMG120404-TM T9115 is a premium double-sided square carbide insert engineered specifically for ISO P (Steel) applications. Featuring the legendary T9115 CVD coated grade, this tool is designed to excel in high-speed continuous to lightly interrupted cutting conditions. The -TM chipbreaker is Tungaloy's "Standard" medium-range geometry, offering a wide range of chip control across varying depths of cut. 100% Made in Japan, it provides the heat resistance and edge toughness required for modern high-productivity CNC machining.

T9115 High-Speed Grade

The T9115 grade features a thick Al2O3 layer which provides exceptional heat resistance, allowing for significantly higher cutting speeds without compromising tool life.

TM Versatile Chipbreaker

The -TM geometry is the industry standard for medium cutting. It balances cutting force and chip breaking efficiency, making it suitable for a wide array of steel alloys.

PremiumTec Post-Treatment

Tungaloy’s specialized coating surface treatment reduces friction and prevents built-up edge, resulting in better surface finishes and more predictable wear patterns.

Decoding SNMG120404-TM Technical Nomenclature

S
Square
N
0° Relief
M
Tolerance
G
Hole/Fix
12
12.7mm Size
04
4.76mm Thick
04
0.4mm Rad.
-TM
Med. Breaker

3. Technical Specifications: Metric vs. Imperial

Parameter Metric (ISO) Imperial Equivalent
Inscribed Circle (IC) 12.7 mm 1/2" (SNMG 431)
Thickness (S) 4.76 mm 3/16"
Corner Radius (RE) 0.4 mm 1/64"
Insert Grade T9115 (Premium CVD) High Speed Machining

Recommended Cutting Parameters (T9115 Grade)

  • Cutting Speed (Vc): 200 - 350 m/min (Standard Steel)
  • Feed Rate (f): 0.15 - 0.40 mm/rev
  • Depth of Cut (ap): 1.0 - 4.0 mm

*Note: T9115 is optimized for high velocity. Increase Vc for smoother finishes and reduced edge build-up.*

4. Product Applications

  • External and internal turning of carbon and alloy steels.
  • High-efficiency medium machining on automotive components.
  • B2B heavy manufacturing requiring stable tool life.
  • Continuous high-speed cutting where thermal stability is vital.

5. Tool Compatibility

Universal fit for standard ISO Turning Holders such as the MCLNR, PSSNR, or PSKNR series. Designed for SNMG 1204 pockets with top-clamp or lever-lock systems.

7. Why Choose CNCHome-Beyond?

Genuine Tungaloy
Direct Japan Imports
Industrial Expertise
Professional Support
Fast Shipping
Global B2B Delivery
Large Inventory
Bulk Stock for Factories

Global Customer Experience

⭐⭐⭐⭐⭐ "Great for High-Volume Jobs" - James W., USA
"We run these SNMG inserts on our automated lines. T9115 is incredibly consistent, which is exactly what we need for long production runs on 1045 steel."

⭐⭐⭐⭐⭐ "Original Tungaloy Quality" - D. Schmidt, Germany
"Excellent heat resistance. We increased our cutting speed by 20% compared to our previous brand and the tool life actually stayed the same."

⭐⭐⭐⭐ "Reliable TM Breaker" - H. Tanaka, Japan
"The TM chipbreaker is very versatile. It handles varying depths of cut without any chip control issues. Very stable."

⭐⭐⭐⭐⭐ "Professional Service" - R. Lim, Singapore
"Genuine parts and very helpful technical advice. The SNMG120404-TM is our go-to for all medium turning operations."

⭐⭐⭐⭐⭐ "Top Surface Finish" - G. Moretti, Italy
"Even at high speeds, the surface finish remains very clean. No built-up edge issues whatsoever on our alloy steel parts."

8. FAQ - Support Tips

Q: Is T9115 suitable for stainless steel?

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

Q: What is the difference between -TM and -TS chipbreakers?

A: -TM is for general medium cutting, while -TS is a sharp-edge finisher designed for smaller depths of cut and lower feed rates.

Q: Does this insert fit SNMG 431 holders?

A: Yes, SNMG 120404 is the metric equivalent to the Imperial SNMG 431 specification and fits all corresponding tool holders.

Expert Machinist Tip: The T9115 Advantage

The **T9115 grade** is a specialized CVD coated carbide that thrives on speed. If you are experiencing "crater wear" on your current inserts, switching to T9115 can help. Its thick Al2O3 coating acts as a thermal barrier, protecting the insert even during the intense heat of high-speed machining. Trust **Tungaloy Japan** for world-class steel turning efficiency.

© 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.