Review on ZFE Random Orbital Sander 5" & 6" Pneumatic Palm Sander with Extra 5" Backing Plate, Sponge Polishing Pads, Sandpapers for Low Vibration and Heavy-Duty Wood, Composites, Metal Projects by Jason Nguyen

The power and performance of this random orbital sander is amazing. Very little pressure or force is required to remove large amounts of material. Below 50psi it slows down a bit, but anywhere in that range or above it has plenty of power (my compressor holds pressure pretty well, even for a few minutes of continuous use). A large number of grinding discs in four different grits. Removing and replacing discs is easy. The base is a dense foam that offers a small and predictable feed force, but otherwise stays flat when no pressure is applied. I haven't tried the included vacuum hose, but this grinder has made many projects a lot easier, faster, and with less hassle.