08:2008:20, 16 April 2024diffhist+862 N
Parallel (tool)
←Created page with 'A '''parallel''' is a rectangular piece of metal with parallel opposite sides of precisely known dimensions and flatness, often used as a work holding device (along with a fixture in metalworking. For example, a pair of parallels may be used to raise a workpiece above the surface of a vise to allow greater access, or to machine features at specific locations. Block parallels are larger hollow versions of the tool. A particularly pop...'