Standard Abrasives 840339, Quick Change Surface Conditioning GP Disc, 2560582, A/O Very Fine, TSM, Blue, 2 in, QS200PM, 7000121651, 50/case 
Insize 3229-16, TUBULAR INSIDE MICROMETER, 15-16″, 6928640356865
$228.13
Graduation .001″
Carbide measuring faces.
15 to 16″ Range
Accuracy: .00040″
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