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.

Tungaloy SCMT09T304-24 T9125 Carbide Turning Insert for Steel

Name: Tungaloy SCMT09T304-24 T9125 Carbide Turning Insert for Steel
SKU: SCMT09T304-24 T9125
Price: 74.91 USD
Availability: InStock

$74.91 USD

✓ In Stock & Fast Dispatch: Order processing: typically 1–3 business days after confirmation.
✓ Global Shipping: Delivery: generally 5–20 business days, depending on destination and shipping method.
✓ Guaranteed Quality: Check model, dimensions and compatibility before ordering. | Direct Factory Outlet
✓ Technical Support: Need grade selection help? Contact Engineer

💰 Bulk savings 2-9 pcs · 6% OFF | 10+ pcs · 12% OFF

Description

Description

Tungaloy SCMT09T304-24 T9125 Insert

High-Speed Steel Turning | 24 Precision Breaker | Premium T9125 CVD Grade

What is the best carbide insert for high-speed steel turning?

The Tungaloy SCMT09T304-24 T9125 is a high-performance square carbide turning insert engineered for stable, high-speed machining of carbon and alloy steels. Utilizing the industry-leading T9125 CVD coated grade, this insert offers exceptional wear resistance and thermal stability, making it the top choice for reducing cycle times in ISO P material groups. The 24 chipbreaker is specialized for finishing to medium cutting, ensuring excellent chip control even at varying depths of cut. Made in Japan, this CNC square insert provides the reliability and edge strength required for modern automated production environments.

Premium T9125 CVD Coating

Advanced Al2O3 and TiCN coating layers provide extreme hardness and heat resistance, allowing for significantly higher surface speeds.

24 Finishing Breaker

The positive geometry of the 24-style breaker minimizes cutting forces and prevents vibration, resulting in superior surface finishes.

Stable Tool Life

The "PremiumTec" surface treatment reduces friction and chip adhesion, ensuring predictable tool life over long production runs.

Decoding SCMT09T304-24 Technical Nomenclature

S
Square

C
7° Relief

M
Tolerance

T
Hole/Fix

09
9.52mm Size

T3
3.97mm Thick

04
0.4mm Rad.

24
Breaker

3. Technical Specifications: Metric vs. Imperial

Parameter	Metric (ISO)	Imperial (ANSI)
Inscribed Circle (IC)	9.525 mm	3/8 inch
Thickness (S)	3.97 mm	5/32 inch
Corner Radius (RE)	0.4 mm	1/64 inch
Hole Diameter (D1)	4.4 mm	0.173 inch

Recommended Cutting Parameters (T9125 Grade)

Cutting Speed (Vc): 150 - 350 m/min (Carbon & Alloy Steel)
Feed Rate (f): 0.08 - 0.25 mm/rev (Optimized Finishing)
Depth of Cut (Ap): 0.5 - 2.5 mm

*Note: For maximum performance, ensure high rigidity of the tool holder and workpiece setup.*

4. Product Applications

Mass production turning of carbon steel components.
Machining of alloy steel shafts, pins, and gears.
Automotive engine parts finishing.
Precision machining where high surface integrity is required.

5. Tool Compatibility

Standard fit for SSDCN or SSKCR/L turning tool holders designed for 9.52mm square inserts (Size 09T3). Perfectly suited for high-RPM CNC lathes.

7. Why Choose CNCHome-Beyond?

Genuine Tungaloy
100% Original Japanese Stock

OEM Authority
Supply Chain for Geely Auto

Technical Support
Expert Machining Guidance

Global Logistics
Fast Shipping Worldwide

Verified Customer Feedback

⭐⭐⭐⭐⭐ "Stable Performance" - D. Roberts, UK
"We've switched to T9125 for all our steel shafts. The tool life is very predictable, which is essential for our lights-out machining."

⭐⭐⭐⭐⭐ "Great Chip Breaking" - K. Schmidt, Germany
"The 24 breaker is excellent. We no longer have issues with long chips wrapping around the spindle on our CNC lathe."

⭐⭐⭐⭐ "Very Sharp Edge" - T. Yamamoto, Japan
"High dimensional accuracy. Tungaloy Japan quality is consistently the best for these types of square inserts."

⭐⭐⭐⭐⭐ "Top B2B Supplier" - G. Rossi, Italy
"Genuine product and fast shipping. Performance on alloy steel is exactly as specified in the catalog."

⭐⭐⭐⭐⭐ "Reliable Quality" - A. Tan, Singapore
"Best price-to-performance ratio for finishing steel. Surface finish is smooth and Ra values are within tolerance."

8. FAQ - Professional Support

Q: Is T9125 better than T9225?

A: T9125 is optimized for higher cutting speeds and wear resistance, while T9225 offers slightly more toughness for interrupted cuts.

Q: Can I use this for stainless steel?

A: T9125 is primarily for steel (ISO P). For stainless steel, we recommend Tungaloy AH630 or AH645 grades.

Q: Does it fit standard SCMT holders?

A: Yes, it is a standard ISO SCMT09T3 size and fits matching holders like the SSDCN series.

Expert Insight: T9125 Coating Technology

In high-speed steel turning, heat is the primary cause of tool failure. The T9125 grade features a thick alumina layer that acts as a superior thermal barrier. This prevents the carbide substrate from softening at high RPMs, ensuring the SCMT09T304 maintains its sharp edge and dimensional accuracy throughout the batch.

Need Help With Tungaloy Inserts?

Looking for a Tungaloy equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.

EQUIVALENT FINDER Cross-Reference to 15 Brands Find equivalent grades from Sandvik, Iscar, Kyocera, Walter, Mitsubishi and 10 more. FREE CATALOG Download PDF Catalogs 15+ insert catalogs with grade, ISO code, and tolerance data sheets. GRADE TOOL Find the Best Grade Insert grade selector for steel, stainless, cast iron, and superalloys.

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This Tungaloy insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.

Technical FAQ & Buying Guide

How do I choose the correct specification?

When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.

How can I check compatibility with my existing setup?

For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.

What quantity and price unit am I ordering?

Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.

How should I choose cutting parameters?

Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.

Are bulk discounts available?

Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.

When will my order ship and arrive?

According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.