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 TCMT16T308-24 T9115 CVD Coated Carbide Turning Insert for Steel Machining

Name: Tungaloy TCMT16T308-24 T9115 CVD Coated Carbide Turning Insert for Steel Machining
SKU: TCMT16T308-24 T9115
Price: 82.56 USD
Availability: InStock

$82.56 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 TCMT16T308-24 T9115 Turning Insert

High-Speed Steel Machining | Premium T9115 CVD Carbide | 0.8mm Radius

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

The Tungaloy TCMT16T308-24 T9115 is a high-performance triangular turning insert specifically engineered for ISO P (Steel) applications. Featuring the legendary T9115 CVD coated carbide grade, this insert excels in high-speed continuous cutting where thermal stability is paramount. The -24 chipbreaker is designed for finishing to medium cutting, providing a perfect balance between sharp cutting action and edge strength. The 0.8mm corner radius ensures excellent edge durability and high surface quality. 100% Made in Japan, it provides the reliability needed for high-productivity CNC manufacturing.

T9115 CVD Technology

A specialized CVD coating with a thick Al2O3 layer that provides extreme heat resistance. It is optimized for high-speed machining of carbon and alloy steels.

-24 Universal Breaker

Engineered for finishing to medium cutting depths. It provides superior chip control at high feed rates, significantly reducing machine downtime caused by chip wrapping.

0.8mm Edge Strength

The larger 0.8mm radius (08) provides a robust cutting edge capable of withstanding higher cutting forces while maintaining smooth surface finishes.

Decoding TCMT16T308-24 Technical Nomenclature

T
Triangular

C
7° Relief

M
Tolerance

T
Hole/Fix

16
16.5mm L

T3
3.97mm Thk

08
0.8mm Rad.

-24
Chipbreaker

3. Technical Specifications: Metric vs. Imperial

Parameter	Metric (ISO)	Imperial Equivalent
Cutting Edge Length (L)	16.5 mm	TCMT 32.52
Inscribed Circle (IC)	9.525 mm	3/8"
Thickness (S)	3.97 mm	5/32"
Corner Radius (RE)	0.8 mm	1/32"

Recommended Cutting Parameters (T9115)

Cutting Speed (Vc): 140 - 350 m/min
Feed Rate (f): 0.10 - 0.35 mm/rev
Depth of Cut (ap): 0.5 - 3.0 mm

*Optimization Tip: T9115 is Tungaloy's first choice for steel turning. Higher cutting speeds can be utilized due to the superior heat resistance of the T9100 series coating.*

4. Product Applications

High-speed finishing and semi-finishing of carbon steel (S45C, etc.).
Automotive components requiring high dimensional precision.
Long-reach boring where stable chip breaking is required.
Machining of alloy steels and tool steels under continuous cutting.

5. Tool Compatibility

Compatible with standard Tungaloy / ISO tool holders designed for TCMT 16T3 size inserts (3/8" Inscribed Circle). Fits various STFCR/L external shanks and boring bars.

7. Why Choose CNCHome-Beyond?

Genuine Tungaloy
100% Original Japanese stock

B2B Technical Support
Industrial tooling consultants

Global Logistics
Rapid shipping for factories

Factory Direct
Stable inventory and sourcing

Machinist Field Reports

⭐⭐⭐⭐⭐ "Extreme Tool Life" - Bernhard S., Germany
"Switched to T9115 for our 1045 steel production. The tool life is nearly 30% longer than our previous CVD inserts. Highly recommended."

⭐⭐⭐⭐⭐ "Great Service" - Mike R., USA
"Fast delivery of original Tungaloy stock. The TCMT16T308 inserts arrived perfectly packaged. Excellent performance on our CNC lathe."

⭐⭐⭐⭐ "No More Stringy Chips" - Hiroshi T., Japan
"The -24 breaker works wonders on mild steel. We've eliminated chip wrapping issues entirely. Very stable grade."

⭐⭐⭐⭐⭐ "Perfect Surface Finish" - Wei Z., Singapore
"Using these for finishing alloy shafts. The 0.8mm radius holds up great under high heat. Great B2B partner."

⭐⭐⭐⭐⭐ "Stable Performance" - Carlos P., Mexico
"Very consistent quality across multiple batches. Tungaloy Japan quality is hard to beat for high-volume manufacturing."

8. FAQ - Technical Assistance

Q: Is T9115 better than T9125 for steel?

A: T9115 is harder and more wear-resistant, making it better for high-speed continuous cutting. T9125 offers slightly more toughness for light interruptions.

Q: What is the benefit of the -24 chipbreaker?

A: It is a versatile breaker that excels in finishing to light-medium cutting, ensuring chips break consistently to prevent workpiece damage.

Q: Can I use this for stainless steel?

A: It is primarily designed for ISO P (Steel). For stainless steel (ISO M), we recommend using Tungaloy's AH7000 series or specialized stainless grades.

Industrial Tip: CVD vs. PVD Coating

The **T9115 CVD coating** provides a thick thermal barrier, perfect for high-speed steel turning where heat is a factor. For smaller parts or low-speed precision work, a **PVD coated grade** like AH725 might be preferred. For high-volume steel production, **Tungaloy Japan** is the professional choice.

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.