12 in, Shape Rectangular, Tolerance 2 microinch, With Hole No, Face Length 1 3/16 in, Face Width 23/64 in, Included Certification Certificate of Inspection, Includes Certificate of Inspection, Standards ASME.Rectangular Gauge Block, Long Form Calibration Certificate No, Material Steel, Application Grade Calibration, Dimension Type Inch, Grade ASME 00, Nominal Size 0.