Taegutec SPMG07T308DK TT6030 Carbide Insert for CNC U-Drill (10pcs)
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TaeguTec SPMG07T308DK TT6030
Precision Stainless Solutions: Engineered for Anti-Welding and Superior Thermal Control
Product Overview
"Achieve stable tool life in gummy materials. The DK geometry and TT6030 grade prevent the built-up edge that destroys standard inserts."
The TaeguTec SPMG07T308DK TT6030 is a specialized 7mm indexable drilling insert designed for the TOPDRILL and DrillRush platforms. This insert is a dedicated solution for Stainless Steel (ISO M) and Super Alloys. The TT6030 grade features a high-performance PVD coating with an ultra-smooth surface designed to resist chemical wear and chip welding. Coupled with the DK chipbreaker—which offers a sharper cutting edge and higher positive rake than the general-purpose DG—this insert significantly reduces cutting forces and work-hardening when machining 300 and 400 series stainless steels.
Core Advantages
A specialized PVD coating that withstands the intense heat generated by the low thermal conductivity of stainless steel.
Sharper edge profile "slices" through gummy chips rather than pushing them, preserving the integrity of the drill body.
The 0.8mm radius provides increased edge strength to handle the variable chip thickness during the drilling entry and exit.
Technical Specifications
ISO Designation Decoding: SPMG 07T308 DK
Square
11° Relief
Tol. Class M
W/ Hole
7.94mm L
3.97mm T
0.8mm RE
| Standard | Model | Side Length (L) | Thickness (S) |
|---|---|---|---|
| Metric | SPMG 07T308 DK | 7.94 mm | 3.97 mm |
| Imperial | SPMG 2.533 DK | 0.313" | 0.156" |
Recommended Cutting Parameters (TT6030)
| Material Group | Vc (m/min) | fn (mm/rev) |
|---|---|---|
| Austenitic Stainless (304/316) | 70 - 140 | 0.06 - 0.12 |
| High-Temp Alloys (Inconel) | 25 - 50 | 0.05 - 0.08 |
Matched Drill Bodies
This insert is precision-matched for TaeguTec TOPDRILL bodies in the Size 07 pocket range.
Industrial Applications
- Drilling of pump and valve housings in Stainless Steel.
- Aerospace fastener production where work-hardening must be minimized.
- Marine hardware manufacturing (316L) requiring high-quality hole finishes.
- Medical grade steel components where thermal control is critical.
Choosing the Right Grade
Selected here. Sharp DK edge and specialized coating for ISO M materials. Prevents built-up edge.
The alternative for interrupted cuts or unstable setups in various materials.
Frequently Asked Questions
1. What makes the DK chipbreaker better for stainless?
The DK geometry is designed with a sharper rake angle to penetrate gummy materials more effectively. This reduces the "smearing" effect that leads to rapid tool wear in stainless steels.
2. Can this insert be used on hardened steel?
While it can work, the sharp DK edge is more susceptible to chipping on hard materials. For H-group materials, consider a T-land or a more robust grade like TT8020.
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.