RS PRO Gauge Block Set Steel Metric, 47 piece With UKAS Calibration

RS Pro 47 Piece Gauge Block Set

RS Pro 47 piece gauge block set, made of high-quality alloy steel with an ultra-micro-lapped surface finish heat treated and aged to give good wear resistance. Excellent inter-set wringing properties. These gauge blocks meet or exceed all known specifications. The flatness, parallelism and surface finish necessary to achieve the required accuracies are the same as or better than government requirements