Taegutec TCMT110204MT TT8020 Carbide Insert for CNC Turning (10pcs)
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TaeguTec TCMT110204MT TT8020
Mastering Stainless Steel: Extreme Toughness for Unstable Conditions and Interrupted Cuts
Product Overview
"Solve the challenge of work-hardening materials with the TT8020—a grade engineered for the demanding heat and pressure of stainless steel machining."
The TaeguTec TCMT110204MT TT8020 is an 11mm triangular turning insert specifically designed for Stainless Steel (ISO M) and Steel (ISO P). The TT8020 grade is a sub-micron PVD-coated carbide that prioritizes edge toughness and resistance to built-up edge (BUE), making it the primary choice for interrupted cuts or low-speed operations where thermal cracking is a risk. The MT (Medium Turning) chipbreaker features a positive rake angle that shears through gummy materials with ease, while the 0.4mm corner radius ensures precise finishing and excellent surface quality on delicate workpieces.
Core Advantages
A highly fracture-resistant grade that excels in interrupted cuts and unstable machine setups where harder grades fail.
The polished PVD surface prevents material welding (BUE), a common issue when machining austenitic stainless steels like 304 and 316.
Optimized for medium-sized boring bars and external holders, offering the rigidity needed for small-to-medium component turning.
Technical Specifications
ISO Designation Decoding: TCMT 110204 MT
Triangle
7° Relief
Tol. Class M
W/ Hole
11.0mm L
2.38mm T
0.4mm RE
| Standard | Model | Side Length (L) | Thickness (S) |
|---|---|---|---|
| Metric | TCMT 110204 MT | 11.00 mm | 2.38 mm |
| Imperial | TCMT 21.51 MT | 0.433" | 0.094" |
Recommended Cutting Parameters (TT8020)
| Material Group | Vc (m/min) | ap (mm) |
|---|---|---|
| Stainless Steel (Austenitic) | 80 - 180 | 0.30 - 2.00 |
| Low Carbon / Alloy Steel | 120 - 240 | 0.30 - 1.80 |
Compatible Tooling
This insert is precision-matched for TCMT 11 size holders and internal boring bars.
Industrial Applications
- Finishing of stainless steel fittings and medical device components.
- Boring operations in austenitic stainless steel pipes (300 series).
- Machining of low-rigidity parts where tool vibration is a concern.
- Universal machining for shops handling a high mix of steel and stainless materials.
Grade Optimization Guide
Selected here. Ideal for stainless steel and interrupted cuts. Maximum reliability in unstable conditions.
The multi-material alternative for higher speeds in stainless steel and super alloys.
Frequently Asked Questions
1. Is TT8020 better than TT8125 for Stainless?
Yes. While TT8125 is a great steel grade, TT8020 is specifically formulated with higher toughness and better BUE resistance, which is essential for the gummy nature of stainless steel.
2. Can this insert be used for interrupted cuts?
Absolutely. The combination of the TCMT positive geometry and the TT8020 tough substrate makes this one of the best choices for interrupted turning and boring in stainless steel.
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.