3M 64468 Scotch-Brite Durable Flex Belt, DF-BL, A/O Fine, 1/2 in x 24 in, 7000121135 
Insize 3229-19, TUBULAR INSIDE MICROMETER, 18-19″, 6928640356896
$262.50
Graduation .001″
Carbide measuring faces.
18 to 19″ Range
Accuracy: .00043″
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