Rockwell RK5140K Sonicrafter Hyperlock Universal Oscillating Tool Kit
Although this is technically a multi-tool, I rate it the highest for both multi-tools and detail sanders. The main thing that this tool has going for it, when compared to others, is the clamping system, the only truly universal clamping system out there which is able to accept anyone’s accessories. It’s also extremely easy to use since the clamp is tool-free, with a top mounted over-center lever. This clamp provides over one ton of clamping force, so you never have to worry about your sanding pads or other accessories coming loose. This upgraded version of the tool has a 3 amp motor to provide plenty of power. It comes with a number of accessory blades, plus a sanding backing pad and several sanding sheets/pads.