Pump drill
A pump drill is a simple hand-powered device used to impart a rapid rotating motion to a rod (the spindle or drill shaft). It can be used for fire making or as a drill to make holes in various materials.
A pump drill is a simple hand-powered device used to impart a rapid rotating motion to a rod (the spindle or drill shaft). It can be used for fire making or as a drill to make holes in various materials.
A pump drill is a simple hand-powered device used to impart a rapid rotating motion to a rod (the spindle or drill shaft). It can be used for fire making or as a drill to make holes in various materials.
Source: Wikipedia "Pump drill" · CC BY-SA 4.0
Share this article: X · Bluesky