Dynabrade 78587 1/4" Dia. x 2" W x 1/8" Center Hole, 60 Grit, 100/pack 
Insize 3229-8, TUBULAR INSIDE MICROMETER, 7-8″, 6928640328824
$149.03
Graduation .001″
Carbide measuring faces.
7 to 8″ Range
Accuracy: .00028″
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