Taegutec TDC4 TT8020 Carbide Grooving Insert for Stainless Parting (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
TaeguTec TDC4 TT8020
Heavy-Duty 4mm Parting Solution for Stainless Steel & Superalloys
Product Overview
"Which 4mm insert is best for deep parting of 304/316 Stainless Steel while avoiding notch wear and tool breakage?"
The TaeguTec TDC4 TT8020 is a high-rigidity, 4.0mm double-ended insert purpose-built for the most demanding ISO M (Stainless Steel) and ISO S (High-Temperature Alloys) applications. Featuring the **TT8020 PVD grade**, this insert utilizes a specialized multi-layered coating on a tough carbide substrate to combat the extreme heat and work-hardening characteristics of exotic materials. The TDC chipbreaker geometry is a masterpiece of engineering; it narrows the chip width to ensure it never touches the groove walls, facilitating flawless evacuation even in deep radial parting of large diameter shafts.
Core Advantages
Superior thermal barrier coating prevents chemical wear and built-up edge (BUE) when machining gummy stainless steels.
The wider 4mm footprint provides the lateral stiffness required for large diameters, preventing blade vibration and wandering.
Positive rake angles reduce cutting pressure, minimizing the heat transferred to the workpiece and extending tool life.
Technical Specifications
Model Decoding: TDC 4 TT8020
TaeguTec
Double Edge
Chipbreaker
4.0mm Width
Alloy Grade
| Unit | Insert Width (W) | Metric Model | Imperial Model |
|---|---|---|---|
| Metric | 4.00 mm | TDC 4 | - |
| Imperial | 0.157" | - | TDC 157 |
Recommended Cutting Parameters (TT8020)
| Material Group | Speed (Vc m/min) | Feed (fn mm/rev) |
|---|---|---|
| Stainless Steel (ISO M) | 70 - 140 | 0.08 - 0.22 |
| Heat-Resistant Alloys (ISO S) | 25 - 60 | 0.05 - 0.14 |
System Compatibility
Applications & Compatibility
- Deep Parting: Specifically designed for parting bars with diameters exceeding 50mm in stainless steel.
- Heavy Grooving: High-rigidity 4mm width is ideal for structural grooving in aerospace components.
- Thermal Control: TT8020 grade excels in applications with high-pressure coolant (HPC).
- Equipment: Fits all TaeguTec T-Clamp system holders with Seat Size 4.
TaeguTec Grade Comparison
| Grade | Coating | ISO Area | Primary Strength |
|---|---|---|---|
| TT8020 | PVD | M, S | Stainless Steel & Heat-Resistant Alloys |
| TT9080 | PVD | P, M, K, S | Interrupted Cuts / General Purpose |
| TT7220 | PVD | P, K | High-Speed Steel Cutting |
Why Choose Us
We provide 100% authentic TaeguTec industrial tooling with rapid global shipping. Our technical team ensures you get the right grade for your specific material, maximizing your machine efficiency and ROI.
"The TDC4 is massive. Total stability on our 75mm stainless shafts. TT8020 lasts much longer than our previous brand."
— Steven K., USA"Perfekt für Duplex-Edelstahl. Sehr gute Standzeit und saubere Schnittkante."
— Lukas M., Germany"Ottima resistenza al calore. Ideale per lavorazioni su Inconel."
— Francesco B., Italy"Very reliable grade for titanium. Chip control is top notch."
— Takashi Y., Japan"Reduces our scrap rate on expensive stainless parts. Consistent tool life."
— Mark S., UKFrequently Asked Questions
A: Increased stability. At 4.0mm (TDC4), the insert can handle significantly higher feed rates and larger bar diameters without risk of deflection.
A: While it can cut it, TT8020 is optimized for Stainless. For Carbon Steel, TT9030 or TT7220 will provide better economy and speed.
A: It narrows the chip so it is physically smaller than the groove width, preventing "clogging" and surface finish damage.
Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
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.
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.
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.