Taegutec SPMG060204DK TT6030 Carbide Insert for CNC U-Drill (10pcs)
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TaeguTec SPMG060204DK TT6030
Precision Stainless Drilling: Optimized for Thermal Stability and Anti-Welding Performance
Product Overview
"Combat work-hardening and built-up edge in 300-series stainless with the specialist DK geometry."
The TaeguTec SPMG060204DK TT6030 is a premier 6mm indexable drilling insert designed for the TOPDRILL system. Specifically engineered for Stainless Steel (ISO M) and heat-resistant superalloys, the TT6030 grade utilizes a state-of-the-art PVD coating that maintains an incredibly smooth surface to resist chip welding (BUE). The DK chipbreaker is more aggressive and sharper than the standard DG geometry, allowing it to slice through gummy materials with lower cutting pressure. This is essential for 6mm drill bodies to prevent deflection and ensure hole straightness in challenging alloys.
Core Advantages
Excellent resistance to thermal cracking and notch wear, typical failure points when drilling stainless steel.
A high-positive rake angle that reduces friction and minimizes heat transfer into the workpiece and drill body.
The 0.4mm corner radius provides the precision required for small-bore drilling while maintaining sufficient edge strength.
Technical Specifications
ISO Designation Decoding: SPMG 060204 DK
Square
11° Relief
Tol. Class M
W/ Hole
5.80mm L
2.38mm T
0.4mm RE
| Standard | Model | Side Length (L) | Thickness (S) |
|---|---|---|---|
| Metric | SPMG 060204 DK | 5.80 mm | 2.38 mm |
| Imperial | SPMG 21.51 DK | 0.228" | 0.094" |
Recommended Cutting Parameters (TT6030)
| Material Group | Vc (m/min) | fn (mm/rev) |
|---|---|---|
| Austenitic Stainless (304/316) | 70 - 140 | 0.05 - 0.10 |
| Martensitic Stainless (420) | 60 - 120 | 0.04 - 0.08 |
Matched Drill Bodies
This insert is precision-matched for TaeguTec TOPDRILL bodies in the Size 06 pocket range.
Industrial Applications
- High-precision drilling in food-grade stainless steel equipment.
- Aerospace fastener hole production in high-nickel alloys.
- Marine hardware manufacturing using corrosion-resistant materials.
- Oil and Gas valve components in 316L and Duplex Stainless.
Performance Comparison
Best for ISO M. Sharp edge and smooth coating prevents chip welding and reduces heat.
Best for interrupted cuts and unstable setups across steel and stainless.
Frequently Asked Questions
1. When should I choose DK over DG chipbreakers?
Choose DK when drilling materials that tend to smear or "stick" to the tool (like stainless). The sharper edge slices the material rather than pushing it, which is crucial for 6mm drills.
2. Does this insert require internal coolant?
While it can run without it, through-spindle coolant is highly recommended for stainless steel to flush gummy chips and keep the temperature within the TT6030's optimal range.
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.