Tool Description: Custom Rotary “Y” Probe for RA Scanner. Kit includes 13 probes. One each of the following items: (ARRY-.125-.156), (ARRY-.156-.187), (ARRY-.187-.218), (ARRY-.218-.250), (ARRY-.250-.281), (ARRY-.281-.312), (ARRY-.312-.375), (ARRY-.375-.437), (ARRY-.437-.50