Depth Micrometer Gage
A micrometer depth gage used to measure irregular holes in narrow boring. The gage measures the holes by inserting the rod into the gage while the pointer measures the bore.
KeywordsRuler, tool, tools, gauge, Gage, rulers, Depth Micrometer Gage, Depth Micrometer Gauge, Depth Micrometre Gauge Gage, Gauges, Gages
Grimshaw, Robert Modern Workshop Hints (Philadelphia, PA: Sampson Low Marston & Company LTD, 1902)