The NeoSander is a reciprocating sander held like a pen, built for the places a palm sander can’t reach: the layer seam on a 3D print, the sprue mark on a model, the inside of a curve. It runs up to four hours a charge over USB-C; the Premium Combo adds a charging dock, a sanding-paper kit and 64 snap-on heads in eight grits from 180 to 1500, colour-coded so you can read the grit across the bench. $69 for the tool, $169 for the combo, shipping since March.