Mitsubishi DCGT070202L-F VP15TF Precision Ground Finishing Insert (10pcs)
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DCGT070202L-F VP15TF
G-Class Ground Accuracy | VP15TF Miracle PVD | F-Fine Cut Geometry
The Micro-Finishing Standard
VP15TF Grade (Miracle PVD Performance): The VP15TF grade is Mitsubishi’s most versatile PVD coating. Using proprietary (Al,Ti)N Miracle technology, it creates a heat-resistant barrier that doesn't sacrifice edge sharpness. This is essential for the DCGT series, where a thick CVD coating would round off the precision-ground edge.
F-Chipbreaker (Precision Low-Force): The F-geometry is a specialized "Fine-cut" breaker. It features an extremely sharp rake angle designed to "peel" the material, reducing radial cutting forces to near zero. This is the ultimate solution for machining thin shafts or deep internal bores where chatter is a constant threat.
G-Class Fully Ground Tolerance: Unlike the DCMT (molded) series, the DCGT is precision ground on its entire periphery. This ensures that when you index the insert to a new edge, your machine's offset remains identical, making it perfect for high-tolerance automated production.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | DCGT070202L-F | 6.35 mm | 2.38 mm | 0.20 mm |
| Imperial | DCGT21.50.5L-F | 1/4" | 3/32" | 0.0078" |
Fine-Cut Precision Parameters
*The 0.2mm radius is fragile. Ensure high spindle speeds and low feeds to prevent edge chipping.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Carbon/Alloy Steel | 120 - 240 m/min | 0.03 - 0.08 mm/r | 0.05 - 0.80 mm |
| Stainless (SUS304/316) | 80 - 150 m/min | 0.02 - 0.06 mm/r | 0.05 - 0.60 mm |
Compatible Left-Hand Holders
Maximum indexing precision with SDJCL or SDUCL left-hand (L) holders:
Shop Left-Hand 07 HoldersPro-Tip: Ground DCGT vs. Molded DCMT
DCGT (Ground): The edge is 5x sharper than a molded insert. Use this for "Micro-Turning" where the part diameter is under 10mm or the surface finish requirement is Ra 0.4.
DCMT (Molded): Choose for general roughing where tolerance is relaxed and cost-efficiency is the goal.
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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.