Industrial 115179-1 Calibration Reference Blocks are a two-piece set from J & F, comprising 115179-1 and 115179-2, stored in a wood box. These calibration reference blocks serve as precision standards for validating and adjusting measurement equipment in metrology workflows, providing stable reference measurements for accuracy checks. Labeled as vintage calibration pieces and described as precision parts, they are suited for archival or legacy instrumentation contexts.
