Tungaloy SCMT09T308-PS T9125 Square Carbide Turning Insert for Steel

$72.61 USD

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Description

Tungaloy SCMT09T308-PS T9125 Insert

Reliable Steel Machining | -PS Precision Breaker | T9125 Versatile CVD Grade

What is the most durable carbide insert for general steel finishing?

The Tungaloy SCMT09T308-PS T9125 is a high-versatility square carbide turning insert designed for the general-purpose machining of ISO P (Steel) materials. While the T9115 is for extreme speeds, the T9125 CVD grade provides a superior balance of wear resistance and fracture toughness, making it the ideal choice for unstable setups or light interrupted cuts. The -PS chipbreaker offers a sharp, positive geometry tailored for finishing to light-medium cutting, while the 0.8mm corner radius provides enhanced edge strength. Made in Japan, this insert is a staple for CNC workshops requiring consistent results across various steel grades.

Balanced T9125 Grade

Utilizes a tough carbide substrate with a specialized CVD coating that excels in a wide range of cutting speeds and resists chipping in interrupted cuts.

-PS Precision Breaker

The positive rake design effectively curls chips even at light depths of cut, preventing workpiece damage and secondary cutting issues.

PremiumTec Treatment

Tungaloy's unique surface post-treatment reduces friction and chip welding, significantly improving tool life and surface finish quality.

Decoding SCMT09T308-PS Technical Nomenclature

S
Square
C
7° Relief
M
Tolerance
T
Hole/Fix
09
9.52mm Size
T3
3.97mm Thick
08
0.8mm Rad.
PS
Breaker

3. Technical Specifications: Metric vs. Imperial

Attribute Metric (ISO) Imperial Equiv.
Inscribed Circle (IC) 9.525 mm 3/8 inch (SCMT 32.52)
Thickness (S) 3.97 mm 5/32 inch
Corner Radius (RE) 0.8 mm 1/32 inch
Hole Diameter 4.4 mm 0.173 inch

Recommended Cutting Parameters (T9125 Versatile Grade)

  • Cutting Speed (Vc): 120 - 320 m/min (Highly stable across steel types)
  • Feed Rate (f): 0.10 - 0.30 mm/rev (Breaker range)
  • Depth of Cut (Ap): 0.5 - 2.0 mm (Optimal finishing depth)

*Note: T9125 is the go-to choice when setup rigidity is medium or when machining varied steel parts.*

4. Product Applications

  • General finishing and semi-finishing of carbon and alloy steels.
  • Turning operations involving light interruptions or forged skins.
  • Production of automotive components requiring Ra < 1.6 finishes.
  • Universal shop insert for maintenance and repair work.

5. Tool Compatibility

Universal fit for SSDCN, SSKCR/L, and SSGCR/L turning tool holders designed for 9.52mm square inserts (Size 09T3). Engineered for broad spindle compatibility.

7. Why Choose CNCHome-Beyond?

Genuine Tungaloy
100% Original Japan Stock
Industrial Supply
Supplying Geely & Global OEM
Tech Support
Machining & Parameter Guidance
Fast Shipping
Global Express Logistics

What Pros are Saying

⭐⭐⭐⭐⭐ "Reliable All-Rounder" - Steve R., UK
"T9125 is much more forgiving than T9115 on my older CNC. The 0.8 radius makes the edge very strong for semi-finishing."

⭐⭐⭐⭐⭐ "Great for Job Shops" - M. Berger, Germany
"We cut different types of steel every day. These inserts handle everything from mild steel to 4140 with zero issues."

⭐⭐⭐⭐ "Predictable Tool Life" - H. Tanaka, Japan
"Consistent results. Tungaloy quality is always high. Predictable wear patterns help us plan our cycle changes."

⭐⭐⭐⭐⭐ "Original Packaging" - G. Moretti, Italy
"Genuine inserts. Shipping to Italy was very fast. CNCHome-Beyond is our primary source for Tungaloy."

⭐⭐⭐⭐⭐ "Strong Edge" - L. Koh, Singapore
"The 0.8mm radius holds up well even when the material has some surface scale. Finish is still beautiful."

8. FAQ - Support Center

Q: Can I use T9125 for stainless steel?

A: SCMT-PS T9125 is optimized for ISO P (Steel). For stainless steel (ISO M), we recommend the AH600 or T6100 series.

Q: When is the 0.8 radius better than 0.4?

A: The 0.8mm radius (308) is stronger and allows for higher feed rates. Use it for semi-finishing or when setup stability is not perfect. Use 0.4mm for fine detailing.

Q: Will this fit my standard SSDCN holder?

A: Yes, it is a standard ISO SCMT 09T3 size and is fully compatible with SSDCN and SSKCR/L series holders.

Expert Insight: The Versatility of T9125

The T9125 CVD grade is the unsung hero of the machine shop. While T9115 is for pure speed, T9125 is for reliability. It is designed to handle the varied pressures of everyday steel turning. When paired with the -PS breaker, the SCMT09T308 geometry provides a perfect balance of edge strength and precision for parts requiring high gloss and tight tolerances. Trust original Japan Tungaloy for consistent performance.

© Technical Data by cnchome-beyond.com - Industrial 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.