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.
Features and Benefits Drill press vises with a horizontal orientation are ground on the base only, for horizontal workholding. Cross slide drill press vises allow for precise workpiece positioning by X and Y-axis travel (left/right and forward/back) motion. Standard spindle operations feature a continuous nut design for consistent jaw movement. Specs Jaw Width (Inch) 6 Jaw Opening Capacity ...