Expand-Screwdriver

This tool will allow astronauts to repair things in hard to reach places. It is a retractable screwdriver. It has an outer tube that is hollow, and the inner tube has a trench with perpendicular lines that are 1 cm apart and a Philip head on one side of it. To use it, simply insert the inner tube into the outer tube, expand it to the desired length, and twist it in the way that one will be screwing.

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