TaeguTec DCMT11T308MT TT8115 | CVD Carbide Insert for Steel
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TaeguTec DCMT11T308MT TT8115
High-Speed CVD Gold Grade: Optimized for Steel and Cast Iron Excellence
Product Overview
"Which insert grade offers the best tool life and surface gloss for high-speed turning in alloy steels and gray iron?"
The TaeguTec DCMT11T304MT TT8115 is a premier choice for ISO P (Steel) and ISO K (Cast Iron) machining. The TT8115 grade is a "Gold Grade" CVD-coated carbide that excels in high-temperature environments, resisting chemical wear at elevated speeds. The MT (Medium-Turning) chipbreaker is engineered to be a versatile powerhouse, providing enough edge strength for semi-finishing while maintaining the sharpness required for finishing. With its 0.8mm corner radius, this insert offers increased edge robustness and better heat dissipation, making it ideal for stable, high-efficiency production cycles.
Key Features
A specialized multi-layer CVD coating that maximizes resistance to flank and crater wear in continuous high-speed cuts.
Optimized for medium-duty applications, ensuring stable chip fragmentation across varying depths of cut and feed rates.
The 0.8mm radius provides a stronger cutting edge compared to smaller radii, allowing for higher feed rates and improved tool longevity.
Technical Specifications
ISO Code Decoding: DCMT11T308MT
55° Rhom
7° Relief
Tolerance
Hole/Sint
9.525mm IC
3.97mm S
0.8mm RE
Med-Turn
| Unit System | Designation | I.C. Dimension | Thickness (S) |
|---|---|---|---|
| Metric (ISO) | DCMT11T308MT | 9.525 mm | 3.97 mm |
| Imperial (ANSI) | DCMT3(2.5)2MT | 0.375" | 0.156" |
Recommended Cutting Parameters
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Steel Alloys (ISO P) | 180 - 450 m/min | 0.10 - 0.30 mm/rev |
| Cast Iron (ISO K) | 150 - 400 m/min | 0.10 - 0.28 mm/rev |
Compatible Toolholders
This DCMT 11T3 insert is standard for precision external and internal holders including:
Product Applications
- High-speed finishing of automotive components in carbon and alloy steel.
- Precision turning of mechanical shafts and transmission gears.
- Semi-finishing of cast iron motor housings and pump casings.
- Ideal for high-volume automated CNC production requiring dimensional stability.
TaeguTec Grade Comparison Benchmark
| Grade Name | Technology | Best Result |
|---|---|---|
| TT8115 (Gold) | CVD Coated | Speed King: Maximum productivity in continuous cuts. |
| TT8125 (Gold) | CVD Coated | General Purpose: Balanced for all steel types. |
Why Choose TaeguTec?
TaeguTec, a member of the IMC Group, is a global leader in providing industrial-grade cutting solutions. The TT8115 series represents the pinnacle of high-speed turning technology. By combining advanced multi-layer CVD coatings with precision-ground substrates, TaeguTec ensures that your machining processes achieve the highest surface quality with fewer tool changes. When production uptime and part aesthetics are critical to your success, the TaeguTec DCMT 11T3 series is the professional's choice for guaranteed excellence.
Global Industry Feedback
"Reliable and Fast"
Using the TT8115 on our 1045 steel production line. We were able to push speeds to 400 m/min with excellent tool life.
— Precision Engineering (USA)"Top Oberflächenqualität"
The MT chipbreaker is incredibly stable. Our cast iron components come out with a mirror finish every time.
— Maschinenbau Müller (Germany)"Solid Performer"
Very consistent performance batch to batch. The 0.8mm radius is perfect for semi-finishing passes.
— Meccanica di Precisione (Italy)Frequently Asked Questions
1. Is the TT8115 suitable for interrupted cuts?
TT8115 is optimized for high-speed continuous machining. For heavy interrupted cuts, we recommend a tougher grade like TT8125.
2. Can I use this for Stainless Steel?
While it can handle some stainless, TaeguTec TT9080 PVD grade is the primary choice for Stainless Steel (ISO M).
Need Help With taegutec Inserts?
Looking for a taegutec 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.
This taegutec insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
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.
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.
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.
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.
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.
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.