TaeguTec DCMT11T308MT TT8125 | CVD Carbide Insert for Steel
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TaeguTec DCMT11T308MT TT8125
Professional CVD Gold Grade: The Ultimate Workhorse for Steel Turning
Product Overview
"Which insert is most reliable for general-purpose steel turning, offering both high-speed durability and edge toughness for varied cut depths?"
The TaeguTec DCMT11T308MT TT8125 is the industrial standard for ISO P (Steel) turning. The TT8125 grade is a premium CVD-coated carbide (Gold Grade) that achieves a perfect synergy between hardness for wear resistance and toughness for impact stability. The MT (Medium Turning) chipbreaker features a reinforced cutting edge and an optimized rake angle, specifically engineered to handle the demands of medium-duty machining. With its 0.8mm corner radius, this insert provides enhanced edge strength and superior heat dissipation, making it ideal for semi-finishing operations in alloy and carbon steels.
Key Features
A multi-layer CVD coating designed to resist cratering and flank wear across a broad range of steel alloys.
Reinforced chipbreaker design that ensures excellent chip evacuation even in gummy or high-tensile steels.
Increases edge robustness, allowing for higher feed rates and providing longer tool life compared to smaller radii.
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) |
|---|---|---|
| Carbon Steel (ISO P) | 150 - 380 m/min | 0.10 - 0.30 mm/rev |
| Alloy Steel (ISO P) | 120 - 300 m/min | 0.10 - 0.28 mm/rev |
Compatible Toolholders
This DCMT 11T3 insert is standard for precision external and internal boring bars including SDJCR/L 11, SDNCN 11, and S-SDUCR/L 11 precision holders.
Product Applications
- Medium-duty turning of mechanical shafts and transmission gears.
- Semi-finishing of carbon steel structural components.
- Precision boring of alloy steel valve housings.
- Ideal for automated CNC production requiring dimensional consistency over long runs.
TaeguTec Grade Matrix
| Grade Name | Coating | Best Used For |
|---|---|---|
| TT8115 | CVD Gold | Stable, continuous high-speed finishing. |
| TT8125 | CVD Gold | General Purpose: Best for varied steel shop tasks. |
Why Choose TaeguTec?
TaeguTec, as a member of the IMC Group, is a global leader in providing industrial cutting solutions. The TT8125 Gold Grade series represents the pinnacle of coating reliability, specifically designed for shops that need a "one-grade-fits-all" solution for steel. By choosing the DCMT 11T3 series with the reinforced MT chipbreaker, you ensure that your CNC machines operate with maximum stability. When precision is mandatory and tool life must be predictable, TaeguTec TT8125 is the professional choice for excellence.
Global Industry Feedback
"Reliable All-Rounder"
Using the TT8125 for our 4340 steel parts. The 0.8mm radius holds up perfectly even on semi-roughing passes.
— Precision CNC Works (USA)"Exzellente Standzeit"
The MT breaker works great in C45 steel. No chip entanglement and very stable tool life.
— Scholz Maschinenbau (Germany)"Very Consistent"
A solid choice for job shops. Good thermal resistance during long finishing passes on cast iron as well.
— Meccanica S.r.l (Italy)Frequently Asked Questions
1. Is the TT8125 suitable for Stainless Steel?
While it can handle some stainless, it is primarily optimized for Steel and Cast Iron. For optimal Stainless results, use the TT9080 PVD grade.
2. How does the MT breaker compare to the FG breaker?
FG is for light finishing with low cutting forces. MT is a Medium Turning breaker with a stronger edge for higher feed rates and deeper cuts.
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.