Because of the First World War, Wegener's book went unnoticed outside Germany. In 1922, however, a third (revised) edition was translated into English, French, Russian, Spanish, and Swedish, pushing Wegener's theory of continental drift to the forefront of debate in the Earth sciences.
A drilling machine, called a drill press, is used to cut holes into or through metal, wood, or other materials (Figure 4-1). Drilling machines use a drilling tool that has cutting edges at its point.
Metal Drill Presses. Our drill presses are designed for drilling in metal and can be used for a variety of jobs such as tube notching, boring with annular cutters or forming with our Flowdrill system. Options include tapping and stepless variable speed. Choose from floor standing models and benchtop drill presses. Filter Selection Â».