Taegutec SPMG090408DK TT6030 Carbide Insert for CNC U-Drill (10pcs)
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TaeguTec SPMG090408DK TT6030
Mastering Stainless Steel: Precision Engineering for Gummy Materials and High-Heat Resistance
Product Overview
"End the struggle with Built-Up Edge (BUE) in 304 and 316 Stainless. The DK geometry combined with TT6030 is the industry standard for clean drilling."
The TaeguTec SPMG090408DK TT6030 is a high-performance 9mm indexable drilling insert designed for the TOPDRILL series. This model is engineered specifically for Stainless Steel (ISO M) and high-temperature alloys. The TT6030 grade utilizes an advanced PVD coating that creates a thermal barrier, maintaining edge hardness even when drilling materials with low thermal conductivity. The DK chipbreaker features a high-positive, sharp cutting edge that "slices" rather than "pushes," significantly reducing the work-hardening and friction that typically leads to rapid tool wear in stainless applications.
Core Advantages
The ultra-smooth surface of the TT6030 grade prevents gummy stainless chips from welding to the rake face, ensuring smooth evacuation.
Specifically designed to lower radial cutting forces, protecting the drill body and improving hole straightness in tough alloys.
A robust 0.8mm corner radius provides the ideal balance between finish quality and the structural strength needed for heavy-duty 9mm pockets.
Technical Specifications
ISO Designation Decoding: SPMG 090408 DK
Square
11° Relief
Tol. Class M
W/ Hole
9.80mm L
4.30mm T
0.8mm RE
| Standard | Model | Side Length (L) | Thickness (S) |
|---|---|---|---|
| Metric | SPMG 090408 DK | 9.80 mm | 4.30 mm |
| Imperial | SPMG 3.532 DK | 0.386" | 0.169" |
Recommended Cutting Parameters (TT6030)
| Material Group | Vc (m/min) | fn (mm/rev) |
|---|---|---|
| Austenitic Stainless (304/316) | 70 - 150 | 0.08 - 0.15 |
| Duplex / Super Alloys | 40 - 80 | 0.06 - 0.10 |
Matched Drill Bodies
This insert is precision-matched for TaeguTec TOPDRILL bodies in the Size 09 pocket range.
Industrial Applications
- Drilling of chemical processing flanges and fittings in 316L.
- Production of automotive exhaust components and turbo housings.
- Aerospace fastening holes in high-nickel or heat-resistant alloys.
- Food and Beverage industry equipment requiring high-finish internal holes.
Grade Optimization Matrix
Selected here. Ideal for M-Group materials. Sharpest edge and anti-welding properties.
Best for heavy interruptions, cross-holes, or vibration-heavy setups in various steels.
Frequently Asked Questions
1. How does the DK chipbreaker help in stainless steel?
The DK geometry is designed with a higher rake angle than the general-purpose DG. This helps "peel" the gummy chip away from the surface, preventing it from sticking and overheating the edge.
2. Is through-spindle coolant required?
For 9mm pockets in stainless, through-tool coolant is highly recommended. It is essential for flushing chips out of the flute and maximizing the thermal resistance of the TT6030 grade.
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.