Battery Hand Drill

hand drill
a small portable drill held and operated by hand
The bow drill is an ancient tool. While it was usually used to make fire, it was also used for primitive woodworking and dentistry. It consists of a bearing block or handhold, a spindle or drill, a hearth or fireboard, and a simple bow. Related drills include the pump drill and the hand drill.
A Hand drill is a hieroglyph, (and tool), used in Ancient Egypt from the earliest dynasties. As a hieroglyph, it can also be used as a determinative for words related to the profession of vase, bowl, pot-making, etc., typically from fine-grained, colorful rare stone, for example unguent jars.

battery
a device that produces electricity; may have several primary or secondary cells arranged in parallel or series
A fortified emplacement for heavy guns
An artillery subunit of guns, men, and vehicles
A container consisting of one or more cells, in which chemical energy is converted into electricity and used as a source of power
group of guns or missile launchers operated together at one place
a collection of related things intended for use together; "took a battery of achievement tests"