12" Nikon #V-12BD, optical comparator, Quadra-Chek 2000 digital read out, 3 lenses, 10X/20X/50X, 6" x 4" stage, 2000, #161019 for Sale | Surplus Record
QUADRA-CHEK 2000 – Measuring with Measure Magic - YouTube
QUADRA-CHEK 2000 Evaluation Unit | Cutting Tool Engineering