The Moore & Wright 44 Protractor Type Depth Gauge Metric/Imperial has the following specifications:
Size of Base: 79mm/3.11in. Width: 5.5mm/0.22in. Thickness: 1.0mm/0.04in. Length of Blade: 195mm/7.68in.
Metric/Imperial Scale Graduations : Front Face: 1/32nd, Rear Face: 1.0mm.