Like the analog (dial), bench-style instruments, E.J. Cady & Company digital, bench-style, lithographic micrometers allow measurement at the center, as well as the edges of material, while eliminating human error from measurements. The following GATF Technical Services Report article has important information about measuring lithographic materials.
Increased accuracy in the pressroom. The 4" throat depth Model remains the most popular choice because blankets can be rolled during measurement.