Mitsubishi DCGT070202L-F VP15TF Precision Ground Finishing Insert (10pcs)
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DCGT070204L-F VP15TF
Precision Ground G-Class | Miracle PVD Coating | F-Finishing Geometry
High-Accuracy Finishing Technology
VP15TF Grade (The Miracle PVD Advantage): The VP15TF grade features a micro-grain carbide substrate with a specialized Al-Ti-N Miracle Coating. This PVD coating is applied thinly to preserve the extreme sharpness of the ground edge. It is remarkably versatile, offering excellent wear resistance in carbon steel and high adhesion resistance in gummy stainless steels.
F Chipbreaker (Fine-Cut Geometry): The F-breaker is a sharp, positive-rake geometry designed for light depths of cut. It generates low cutting forces, which is essential for preventing vibration on small diameters or thin-walled parts. It ensures consistent chip breaking even at high speeds.
G-Class Ground Precision: Every DCGT insert is periphery-ground. This results in tighter tolerances on the inscribed circle (I.C.) and thickness, ensuring that your machine tool offsets remain consistent every time you index the insert.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | DCGT070204L-F | 6.35 mm | 2.38 mm | 0.40 mm |
| Imperial | DCGT21.51L-F | 1/4" | 3/32" | 0.0157" (1/64") |
Precision Machining Recommendations
*The F-breaker is optimized for high surface speeds. Ensure stability for the 0.4mm radius to achieve best finish.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Carbon/Alloy Steel | 120 - 220 m/min | 0.05 - 0.15 mm/r | 0.10 - 1.20 mm |
| Stainless Steel | 80 - 160 m/min | 0.04 - 0.12 mm/r | 0.10 - 1.00 mm |
Compatible Left-Hand Holders
Maximum indexing accuracy when used with SDJCL or SDUCL left-hand (L) holders:
Shop Left-Hand 07 HoldersPro-Tip: Ground DCGT vs. Molded DCMT
DCGT (Ground): Best for parts where tolerances are under 0.02mm. The indexing accuracy is vastly superior, meaning less setup time between edges.
DCMT (Molded): Choose for general turning where cost-per-edge is the priority and tolerances are more relaxed.
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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.