Provide a wide range of use in layout, gauging, inspection work and for setups on various machine toolsAdjustable feature makes it possible to adjust them to exact size by micrometer measurement and also permits use in place of several solid-type parallelsUseful as gauges in checking the size of slots and openingsSlide smoothly and can be easily adjusted.Includes:Parallels-Sizes A, B, C, D, E, FCase