Does it need a compressor?

Yes. It is an air tool that runs at 90 psi and averages about 5.5 cfm, so it needs a compressor and a 3/8-inch air hose.

Is the 3/32-inch orbit good for heavy sanding?

No. The small orbit is made for finish work and fine scratch patterns; removing a lot of material goes faster with a larger-orbit sander.

It uses a 6-inch pad with a 5/16-24 spindle thread, so standard 6-inch hook-and-loop or PSA pads in that thread fit.

It is lighter and has no cord, but it depends on a compressor and hose. Electric sanders are simpler to run anywhere.

The sander itself. Pads, sandpaper and air fittings are generally bought separately.

At NationalToolWarehouse.com, for $93.36, 26% under what the other stores charge, as of our latest check.

14 stores we checked sell it, including JBTools.com, NationalToolWarehouse.com, Walmart, eBay, ToolPan.com.

$93.36at NationalToolWarehouse.comChecked 1 h ago

26% under what the other stores charge

Compared across 14 stores. Prices are checked against each store and labelled with when.