TaeguTec DCMT11T304FG TT8125 | CVD Coated Steel Turning Insert
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TaeguTec DCMT11T304FG TT8125
Advanced CVD Gold Grade: Maximum Efficiency for Precision Steel Finishing
Product Overview
"Which insert provides the best thermal stability and surface finish during high-speed continuous steel turning?"
The TaeguTec DCMT11T304FG TT8125 is specifically designed for ISO P (Steel) and stable ISO K (Cast Iron) applications. The TT8125 grade features a thick, multi-layered CVD coating (TiCN + Al2O3) that provides a superior thermal barrier, protecting the carbide substrate from crater wear even at high spindle speeds. The FG (Finishing-General) chipbreaker is meticulously ground to a sharp edge, allowing for lower cutting forces and preventing built-up edge (BUE). This combination ensures that the insert maintains a consistent 0.4mm corner radius throughout long production runs, providing the high-gloss finish required for precision industrial components.
Key Features
A specialized Alumina layer provides elite heat resistance, allowing for significantly higher cutting speeds than conventional PVD inserts.
Optimized for light depths of cut, providing excellent chip fragmentation and preventing vibration in thin-walled workpieces.
Specifically engineered to deliver stable dimensions and sub-micron surface Ra values in steel alloys and carbon steel.
Technical Specifications
ISO Code Decoding: DCMT11T304FG
55° Rhom
7° Relief
Tolerance
Hole/Sint
9.525mm IC
3.97mm S
0.4mm RE
Finishing
| Unit System | Designation | I.C. Dimension | Thickness (S) |
|---|---|---|---|
| Metric (ISO) | DCMT11T304FG | 9.525 mm | 3.97 mm |
| Imperial (ANSI) | DCMT3(2.5)1FG | 0.375" | 0.156" |
Recommended Cutting Parameters
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Carbon Steel (ISO P) | 180 - 450 m/min | 0.05 - 0.20 mm/rev |
| Alloy Steel (ISO P) | 120 - 350 m/min | 0.05 - 0.15 mm/rev |
Compatible Toolholders
This DCMT 11T3 insert is optimized for all standard precision holders including SDJCR/L 11, SDNCN 11, and S-SDUCR/L 11 boring bars.
Product Applications
- High-speed finishing of automotive drive shafts and carbon steel gears.
- Precision boring operations in alloy steel components requiring tight tolerances.
- Finishing passes for gray cast iron housings where heat management is critical.
- Continuous turning in large-batch CNC production environments.
TaeguTec Steel Grade Benchmark
| Grade Name | Coating Type | Primary Focus |
|---|---|---|
| TT8125 (Carbide) | CVD Gold (Al2O3) | Thermal Resistance: Maximum speed in ISO P steel. |
| TT5080 (Carbide) | PVD TiAlN | Edge Toughness: Gummy materials like Stainless Steel. |
Why Choose TaeguTec?
TaeguTec is a premier brand under the IMC Group, known globally for setting the benchmark in CNC tooling efficiency. The TT8125 series is the result of intensive R&D into CVD coating architecture, designed for the modern CNC shop that cannot afford downtime. By providing a grade that withstands the extreme temperatures of high-speed steel turning while maintaining a sharp cutting edge, TaeguTec ensures your operations are faster, more reliable, and significantly more cost-effective. Trust TaeguTec for the industrial-grade performance your precision machining requires.
Global Industry Feedback
"Flawless Surface Finish"
We increased our Vc by 25% on our steel shaft project. The TT8125 inserts maintained a perfect gloss finish even after 100 parts.
— SteelCraft Precision (USA)"Top für die Serienfertigung"
Very stable dimensions across large batches. The FG chipbreaker produces ideal chips in 42CrMo4.
— Zerspanung Nord (Germany)"Solid Steel Performer"
Thermal resistance is very high. No cratering issues even during aggressive finishing cycles.
— Meccanica S.r.l (Italy)Frequently Asked Questions
1. What makes TT8125 better than PVD grades for steel?
The CVD coating is thicker and provides a much stronger heat barrier (Alumina). This prevents the carbide from softening at the high temperatures generated by high-speed steel turning.
2. Can I use the FG chipbreaker for roughing?
No. The FG geometry is ground for light finishing passes (usually 0.2mm to 1.0mm DOC). For roughing, a heavier geometry like MT would be more suitable.
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.