Checking features (bores, external diameters, distances, etc.) by variable gages offers the following advantages compared with go - no go: Checking absolute value of measure having the possibility of detecting it in every position (part shape error evaluation). Immediate results. Data for process control for keeping them at tolerance center. Possibilty of statistical approach for production quality control (avoiding 100% checking or part sorting in big samples). MG has the following kinds of gages:  VARIABLE SNAP GAGES UNIVERSAL CALIPERS ACM UNIVERSAL GAGES EASY TAPER GAGES AIR GAGES Other special gages are designed and manufactured according to customer needs.