TaeguTec SCMT09T308-FG TT8020 | Square PVD Finishing Insert
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TaeguTec SCMT09T308-FG TT8020
The Industrial Choice for Precision Stainless & Super Alloy Finishing
Product Overview
"Which CNC insert is most reliable for achieving high-definition surface finishes on 316L Stainless and Titanium while preventing notch wear?"
The TaeguTec SCMT09T308-FG TT8020 is engineered to answer that specific challenge. It targets ISO M (Stainless) and ISO S (HRSA) workpieces. The TT8020 grade is a sub-micron carbide substrate with a specialized PVD coating that maintains edge sharpness while resisting thermal cracking. The FG (Fine Geometry) chipbreaker is the key to its success: it features a high rake angle and sharp edge to "shear" rather than "tear" gummy materials, ensuring that even at depths of cut as low as 0.5mm, chips are broken into manageable curls to protect your surface Ra values.
Key Features
A dense, heat-resistant PVD layer that excels in high-heat zones, preventing notch wear in stainless steel.
Tailored for light finishing. Reduces radial cutting forces, ideal for maintaining tolerances on slender shafts.
Provides the high transverse rupture strength needed for high-pressure finishing passes.
Technical Specifications
ISO Code Decoding: SCMT09T308-FG
Square 90°
7° Relief
Tolerance
Hole/Sint
9.52mm IC
3.97mm S
0.8mm RE
Fine Fin.
| Unit System | Designation | I.C. (Inscribed Circle) | Thickness (S) |
|---|---|---|---|
| Metric (ISO) | SCMT09T308-FG | 9.52 mm | 3.97 mm |
| Imperial (ANSI) | SCMT32.52-FG | 0.375" | 0.156" |
Recommended Cutting Parameters
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Stainless Steel (ISO M) | 80 - 180 m/min | 0.05 - 0.20 mm/rev |
| Super Alloys (ISO S) | 25 - 60 m/min | 0.08 - 0.15 mm/rev |
Compatible Toolholders
This SCMT 09 series insert fits standard 90° square positive holders. Compatible with SSKCR/L 09 and SCKCR/L 09 shank tools.
Product Applications
- Aerospace fasteners and valves in Inconel or Titanium.
- Medical grade Stainless Steel (316LVM) surgical components.
- Finishing passes on automotive fuel injection parts.
- Internal boring where chip wrapping must be avoided.
Why Choose TaeguTec?
TaeguTec is a global pioneer in metalworking technology. The SCMT09T308-FG TT8020 is built on decades of research into exotic materials. While many brands struggle with the heat generated by Titanium and Inconel, our TT8020 grade utilizes a proprietary nanostructured PVD coating that acts as a thermal shield. The FG chipbreaker geometry is specifically designed to work with low feed rates, ensuring that you never have to deal with "stringy" chips that ruin parts or destroy tools. Choose TaeguTec for predictable tool life and world-class surface Ra quality.
Verified Global Feedback
"Best for Stainless"
Finally found an insert that doesn't produce bird-nesting chips on 304 stainless. The finish is mirror-like.
— Precision MedTech (USA)"Top Performance in Inconel"
Using this for finishing aerospace valves. The TT8020 grade resists notch wear remarkably well.
— AeroMachining GmbH (Germany)"Grande finitura"
The FG chipbreaker is excellent for light passes. Very stable dimensions over long runs.
— Officina Meccanica (Italy)"Sharp and Reliable"
Very sharp edge, great for Titanium. A bit more expensive but worth it for the finish quality.
— Sato Precision (Japan)Frequently Asked Questions
1. What is the difference between FG and PC chipbreakers?
FG is a "Fine Geometry" designed for shallower depths of cut and lower feed rates compared to the PC (Precision) chipbreaker.
2. Is TT8020 better than TT5080?
TT8020 offers higher toughness and notch wear resistance, making it superior for work-hardening materials like Inconel and Stainless Steel.
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.