dial indicator; dial test indicator
Wasei-eigo term for a precision measuring instrument used in machining and engineering to measure small distances or variations. The English source is 'pick tester', but the actual tool is a dial indicator or dial test indicator.
wasei-eigo (Japanese-coined English), from pick tester
Measure the runout of the part with a dial indicator.
This dial test indicator can measure in 0.01 mm increments.