CALIBRATE OPTICAL PARALLEL 0- 25MM – BASIC NAME PARALLELON NAME OPTICAL MODIFIER MICROMETER CAPACITY 0 TO 25 MM NOMINAL VALUE 12.00 MM 12.12 MM 12.25 MM 12.37 MM PLANENESS 0.1 MICROMETER PARALLELISM 0.2 MICROMETER DIAMETER 30 MM COMMERCIAL REFERENCE MITUTOYO-157-903