Depth gauges used in woodworking are not generally useful for measuring the depth of a hollow made in a bowl or other pieces at the wood lathe. There are several homemade depth gauges for this purpose on the net.
This version I show was made with a discarded printer bar (calibrated in tenths of an inch), a piece of cedar, a brass screw, a “T” insert nut, and a piece of acrylic.
morsa
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