I consider the following one tool:
Medium quality, 12 spd, floor mount, drill press with tooling:
A set of very high quality drill bits - letter, fractional & number sizes.
A very high quality tap & die set.
Various drill & thread guages for selecting the right stock, taps, dies & drills.
A set of Forstner bits.
A few fly cutters.
A collection of wire wheels.
A collection of mounted stones.
A few flap wheels.