Rectangular Gauge Block, Long Form Calibration Certificate No, Material Steel, Application Grade Inspection, Dimension Type Inch, Grade ASME 0, Nominal Size 4 in, Shape Rectangular, Tolerance 5 microinch, With Hole No, Face Length 1 3/8 in, Face Width 23/64 in, Included Certification Certificate of Inspection, Includes Cert. of Inspection, Standards ASME