Taegutec TDJ3 TT8020 Carbide Grooving Insert for Stainless Parting (10pcs)
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TaeguTec TDJ 3 TT8020
Precision 3.0mm Neutral Parting for Stainless Steel & High-Temp Alloys
Product Overview
"Which 3mm parting insert can handle the heat of 316L stainless steel without the edge collapsing?"
The TaeguTec TDJ 3 TT8020 is the premier choice for challenging materials. Machining Stainless Steel and Inconel generates immense heat at the cutting zone, which often leads to rapid flank wear or plastic deformation of the tool. The TT8020 grade features a specialized high-aluminum content PVD coating that acts as a thermal barrier, maintaining hardness even at extreme temperatures. The TDJ chipbreaker is designed with a sharp positive rake angle to slice through gummy materials, significantly reducing cutting forces and preventing the work-hardening of the workpiece.
Core Advantages
TT8020 grade is engineered to resist thermal cracking and oxidation, making it perfect for high-pressure coolant applications.
The TDJ geometry curls "gummy" stainless chips into tight, manageable scrolls, preventing bird-nesting on the spindle.
Sharp cutting edge ensures clean shearing, reducing secondary deburring time on critical aerospace and medical parts.
Technical Specifications
Model Decoding: TDJ 3 TT8020
T-Clamp Geometry
3.0mm Width
Neutral (0°)
Heat-Resistant
| Unit | Width (W) | Metric Model | Imperial Model |
|---|---|---|---|
| Metric | 3.00 mm | TDJ 3 | - |
| Imperial | 0.118" | - | TDJ 118 |
Recommended Parameters for TT8020
| Material | Vc (m/min) | fn (mm/rev) |
|---|---|---|
| Stainless 304/316 | 80 - 150 | 0.05 - 0.15 |
| Inconel / Titanium | 25 - 55 | 0.03 - 0.10 |
Compatible Tooling
Applications & Compatibility
- Stainless Steel Experts: Specifically tuned for Austenitic, Martensitic, and Duplex Stainless.
- Aerospace Components: excels in heat-resistant super alloys like Inconel 718.
- Deep Parting: The 3.0mm neutral design ensures the tool stays on center in deep radial cuts.
- Equipment: Standard fit for all TaeguTec T-Clamp series parting blades and blocks (Seat Size 3).
TaeguTec Grade Comparison
| Grade | ISO Scope | Coating | Machining Focus |
|---|---|---|---|
| TT8020 | M, S | Hi-Al PVD | Heat Resistance & Stainless Finishing |
| TT9080 | P, M, K | PVD | Toughness & Interrupted Cutting |
| TT7220 | P, K | PVD | High Speed Steel & Cast Iron |
Why Choose Our Solutions
We specialize in industrial-grade tooling that meets the rigid standards of ISO compliance. Our TDJ 3 TT8020 inserts are sourced to provide consistent performance across your CNC lathe operations.
"TT8020 is the only grade that lasts in our 316 stainless production. Excellent heat resistance."
— Mark S., USA"Hervorragende Standzeit bei rostfreiem Stahl. Sehr zu empfehlen."
— Jürgen B., Germany"Il miglior inserto per acciaio inossidabile. Taglio pulito e senza sbavature."
— Paolo R., Italy"Consistent performance in Titanium. Good tool life for the price."
— Hiroshi K., Japan"Chip control is miles ahead of our previous supplier. No more bird-nesting."
— Thomas L., UKFrequently Asked Questions
A: Yes. Its neutral (0° lead angle) design makes it an excellent choice for both parting and external radial grooving with flat bottoms.
A: Absolutely. In fact, TT8020 performs significantly better with high-pressure coolant as it helps evacuate chips even faster in deep grooves.
A: While it will cut Carbon Steel, it is not optimized for it. For Carbon Steel (ISO P), we recommend the TT9080 or TT7220 grades for better cost-per-part efficiency.
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.