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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