The Diamond 360 Coronary Orbital Atherectomy System is the first evidence based vessel preparation treatment for severely calcified coronary lesions. Enabling successful stent employment, it leads to effective and safe PCI outcomes. This, in turn, leads to low re-admission rates. In order to simply and safely reduce coronary arterial calcium, the Diamond 360 Coronary Orbital Atherectomy System utilizes a patented combination of centrifugal force with differential sanding. This differential sanding enables the healthy tissue to flex away. The arterial calcium is reduced as the centrifugal force presses the crown against the lesion when the crown is rotating and the orbit is increasing.