Taegutec TDC4 TT8020 Carbide Grooving Insert for Stainless Parting (10pcs)
Free shipping on all orders.
Check compatibility: Confirm the model and dimensions before ordering.
Need help choosing? Contact us before ordering.
💰 Bulk savings 2-9 pcs · 6% OFF | 10+ pcs · 12% OFF
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.
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.