TaeguTec SCMT09T308-MT TT8020 | Square Stainless Steel Turning Insert
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TaeguTec SCMT09T308-MT TT8020
Advanced PVD Technology: The Ultimate Solution for Stainless Steel & High-Temp Alloys
Product Overview
"Which square positive insert offers the most reliable edge life and chip evacuation when turning 304 or 316 stainless steel under medium loads?"
The TaeguTec SCMT09T308-MT TT8020 is an industrial specialist designed for ISO M (Stainless Steel) and ISO S (Super Alloys). The TT8020 grade features a specialized PVD coating over a tough sub-micron substrate, making it highly resistant to the work-hardening and built-up edge (BUE) typical of stainless steel. The MT (Medium) chipbreaker is engineered with a positive rake angle that shears through gummy materials effortlessly, providing superior chip control even at high feed rates. This configuration is critical for maintaining dimensional accuracy in aerospace, medical, and high-end automotive parts.
Key Features
PVD coating provides a sharp, resilient edge that resists notch wear in tough-to-cut alloys.
Optimized geometry for medium-duty turning, effectively managing chip flow in ductile and heat-resistant materials.
Enhanced nose radius provides increased edge strength and allows for higher feed rates without sacrificing finish.
Technical Specifications
ISO Code Decoding: SCMT09T308-MT
Square 90°
7° Relief
Tolerance
Hole/Sint
9.52mm IC
3.97mm S
0.8mm RE
Med Chip
| Unit System | Designation | I.C. (Inscribed Circle) | Nose Radius (RE) |
|---|---|---|---|
| Metric (ISO) | SCMT09T308-MT | 9.52 mm | 0.8 mm |
| Imperial (ANSI) | SCMT32.52-MT | 0.375" | 0.031" |
Recommended Cutting Parameters
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Stainless Steel (M) | 80 - 200 m/min | 0.12 - 0.45 mm/rev |
| Super Alloys (S) | 30 - 80 m/min | 0.10 - 0.35 mm/rev |
Compatible Toolholders
This SCMT 09 series insert fits standard 90° square positive holders. Compatible with: SSKCR/L 09 or SCKCR/L 09. For internal boring, use S-SCKCR 09 boring bars.
Product Applications
- Medium-duty turning and profiling of Austenitic (304, 316) and Duplex Stainless Steel.
- Machining of aerospace-grade Super Alloys and Heat-Resistant materials (Inconel, Titanium).
- Internal boring of stainless steel valve bodies and hydraulic components.
- General-purpose turning in CNC job shops handling high-alloy steels.
TaeguTec Grade Benchmarking
| Grade Name | Coating | Best Use Case |
|---|---|---|
| TT8020 | PVD | The Reliable All-Rounder: Best for stable tool life in all stainless steels. |
| TT9080 | PVD | The Tough Fighter: Optimized for heavy interruptions and lower speeds. |
Why Choose TaeguTec?
TaeguTec is a global pioneer in tungsten carbide technology, and the SCMT 09T308-MT TT8020 represents the pinnacle of PVD engineering. We know that stainless steel is notoriously difficult due to its heat retention and work-hardening nature. By utilizing a high-resilience PVD coating paired with the MT chipbreaker, TaeguTec provides an insert that stays sharp longer and breaks chips more effectively than generic carbide. When your workflow involves high-value materials like aerospace alloys or medical-grade stainless, TaeguTec is the industry’s trusted partner for ensuring precision and minimizing scrap.
Verified Global Feedback
"Reliable Tool Life on 316SS"
Outstanding performance on our stainless valve parts. The 0.8 radius is very robust, and we've seen a 25% increase in tool life over our previous supplier.
— Precision Fluid Dynamics (USA)"Perfekt für Edelstahl"
The MT chipbreaker is a lifesaver. No more bird-nesting on the lathe. The finish on Duplex stainless is impeccable.
— CNC Werkstatt Müller (Germany)"Grande Qualità"
Stable edge life even when machining heat-treated stainless. The TT8020 grade is very consistent across all batches.
— Meccanica di Precisione (Italy)"Consistent Boring"
We use these primarily in our boring bars for aerospace alloys. The positive relief angle really helps reduce vibration.
— Sato Aerospace (Japan)Frequently Asked Questions
1. Is TT8020 suitable for interrupted cuts?
TT8020 has good toughness, but for heavy interrupted cuts in stainless steel, we recommend TT9080 for maximum impact resistance.
2. What is the benefit of the 0.8mm nose radius?
The 0.8mm radius (08) offers more edge strength than a 0.4mm radius, making it more suitable for high feed rates and rougher skin on castings.
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.