Dynabrade 97570 1/2" NPT Female Safety Coupler 
Dynabrade 69522 Housing for 69500, 5,000 RPM 
Insize 3229-13, TUBULAR INSIDE MICROMETER, 12-13″, 6928640328879
$214.02
Graduation .001″
Carbide measuring faces.
12 to 13″ Range
Accuracy: .00036″
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