TaeguTec SPMG060204DG TT8020 | PVD Coated Indexable Drilling Insert
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TaeguTec SPMG060204DG TT8020
High-Performance Drilling: Optimized Stability for Steel & Stainless Steel
Product Overview
"Which indexable insert is best for stable hole making in alloy steel while ensuring smooth chip evacuation in deep-hole drilling?"
The TaeguTec SPMG060204DG TT8020 is a premium indexable drilling insert designed for the DrillRush and standard indexable drill families. Featuring the TT8020 grade, it utilizes a specialized PVD coating over a tough sub-micron substrate, providing excellent resistance to heat and chipping. The DG chipbreaker is specifically engineered for drilling applications; its unique geometry breaks chips into small, manageable "C" shapes, preventing flute clogging and ensuring continuous operation in both ISO P (Steel) and ISO M (Stainless Steel) materials.
Key Features
Advanced multi-layered AlTiN coating provides extreme hardness and thermal stability, extending tool life in high-speed drilling.
Optimized for drilling: reduces cutting resistance and ensures excellent chip breaking even at varying feed rates.
Reinforced cutting edges minimize micro-chipping during the high-impact entry and exit phases of the drilling process.
Technical Specifications
ISO Code Decoding: SPMG 060204 DG
Square
11° Relief
Tol. Class M
W/ Hole
5.95mm L
2.38mm T
0.4mm RE
| System | Model | Side Length (L) | Thickness (S) |
|---|---|---|---|
| Metric | SPMG 060204 DG | 5.95 mm | 2.38 mm |
| Imperial | SPMG 21.51 DG | 0.234" | 0.094" |
Recommended Cutting Data
| Material Group | Vc (m/min) | fn (mm/rev) |
|---|---|---|
| Alloy Steel (P) | 120 - 220 | 0.05 - 0.12 |
| Stainless Steel (M) | 80 - 160 | 0.04 - 0.10 |
Matched Drilling Bodies
Optimized for TaeguTec TCD (DrillRush) and TOPDRILL bodies (06 size).
Industrial Applications
- General hole making in automotive engine components.
- Precision drilling for hydraulic manifolds and valves.
- Deep hole drilling in structural steel and stainless frames.
- Reliable performance in CNC machining centers and CNC lathes.
TaeguTec Drilling Grade Comparison
General purpose. Excellent balance of wear resistance and toughness for P and M materials.
Tougher grade optimized for interrupted cuts and unstable drilling conditions.
Why Trust TaeguTec SPMG?
The SPMG060204DG is the result of South Korean precision engineering. By utilizing the TT8020 PVD grade, TaeguTec ensures that users experience fewer tool changes and higher reliability. Whether you are running a single CNC machine or a high-volume production line, these inserts deliver the predictability required for modern "lights-out" manufacturing.
"Excellent Stability" - Switched to SPMG DG for our stainless manifold job. Zero flute clogging issues.
— Workshop Manager (USA)Sehr gute Standzeit in 42CrMo4. Die Spankontrolle ist hervorragend.
— CNC Spezialist (Germany)Ottimo grado TT8020. Resistente al calore anche a secco.
— Meccanica Generale (Italy)Predictable wear patterns. Makes planning production much easier.
— Tooling Tech (Japan)Frequently Asked Questions
1. Can I use SPMG inserts in both the peripheral and central pockets?
Yes, the SPMG square design allows the same insert to be used in both positions on compatible TopDrill bodies, simplifying your inventory.
2. Is TT8020 better for dry or wet drilling?
While TT8020 has high thermal stability, internal coolant is highly recommended for drilling to ensure chip evacuation and prevent heat build-up in the hole.
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.