What different types of hand drills are there?

There are three main types of hand drills used in modelling, all with quite amusing or non-descriptive names including eggbeaters (officially known simply as hand drills or wheel braces), the Archimedean drill, which developed into the push drill and pin vices.

Traditional hand drills (eggbeaters) have a handle you turn to provide rotation to a drill bit via a gear, a push drill also produces a rotating motion but is operated by pumping the handle of the screwdriver-like device up and down as you work and a pin vice has no mechanism therefore is operated by screwing a bit through a surface in an action not too dissimilar to using a bradawl. 

Hand operated drills specifically designed for modellers accept very small bits ranging from zero to just a couple of millimetres making them ideal for modelling projects. Although there are numerous other types of hand-operated drills available, these three are the most commonly used by modellers providing them with a means to drill holes with a precision that power tools would not allow.