When it comes to gauging and measuring, the Mitutoyo 611135-531 7/64″ L, 3/8″ H, Steel ASME 0 Gauge Block is the tool you need. It is ideal for dimensional quality control in manufacturing processes. This steel gauge block has a width of 1 3/16 in., a length of 7/64 in., and a height of 3/8 in. The 0 grade means that this tool has an accuracy of 4 microinch. Its shape is rectangular with a face length of 1 3/16 in.. When it comes to accurate measurements, the Mitutoyo 611135-531 Gauge Block is the tool you want on hand.