Rectangular Gauge Block Set Long Form Calibration Certificate Yes Material Steel Application Grade Inspection Calibration Dimension Type Inch Grade ASME B Included Size Range 0.05 in to 4 in Included Sizes (19) 0.05 in to 0.95 in (9) 0.1001 in to 0.1009 in (49) 0.101 in to 0.149 in (4) 1 in to 4 in Increments 0.0001 in 0.001 in 0.05 in 1 in Number of Pieces 81 Shape Rectangular Tolerance +/-.000050 With Hole No Case Type Wooden Case