Mitsubishi CCMT09T304 VP15TF Miracle Coated Universal Turning Insert (10pcs)
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CCMT09T304 VP15TF
The "Miracle" Universal Workhorse | PVD Coated | 0.4mm Finish Radius
Coating & Geometry Engineering
VP15TF Grade (Miracle PVD Coating): This grade features Mitsubishi's proprietary Al-Ti-Cr-N coating. It is engineered for Universal Performance across ISO P, M, K, and S materials. The "Miracle" coating provides extreme thermal resistance and superior adhesion, preventing edge chipping even when machining gummy stainless steels or scaly heat-treated alloys.
0.4mm Finishing Radius (Standard Geometry): The 04 (1/64") radius is the industry standard for finishing. It minimizes radial cutting forces, which significantly reduces the risk of vibration (chatter) in internal boring operations, ensuring a high-quality surface finish (Ra) and strict dimensional accuracy.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CCMT09T304 | 9.525 mm | 3.97 mm | 0.40 mm |
| Imperial | CCMT32.51 | 0.375" (3/8") | 0.156" (5/32") | 0.0157" (1/64") |
Recommended Cutting Parameters
*VP15TF is designed for stable and semi-stable conditions. Maintain a constant surface speed (CSS) for best tool life.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Alloy Steel (P) | 120 - 240 m/min | 0.05 - 0.15 mm/r | 0.20 - 1.50 mm |
| Stainless Steel (M) | 90 - 180 m/min | 0.05 - 0.12 mm/r | 0.20 - 1.20 mm |
Pro-Tip: VP15TF vs NX2525
VP15TF (PVD Carbide): Your go-to for toughness. Excellent for stainless steel and interrupted cuts where impact resistance is needed.
NX2525 (Cermet): Use this only for high-speed finishing on steel. Cermet provides a mirror-like finish but is brittle. For universal shop work, **VP15TF** is much more forgiving and reliable.
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