Power operated hand tools, namely, hand-held rotating chuck type rotary tool for grinding, polishing, sanding, deburring, shaping, and cutting; hand-held reciprocating sanders, and polishers; power-operated hand-held sanders, grinders, and buffers; and kits comprising combinations of the above-mentioned tools with sandpaper, sanding drums, polishing pads, brushes, collets, emery wheels, polishing wheels, buffing wheels, grinding wheels, and mandrels, all sold together as a unit