Dynabrade 51510 Industrial RED-TRED Eraser Disc Tool, .7 HP, 0-2,500 RPM, 5/8"-11 Spindle 
Insize 6144, ACCESSORY SET FOR DIGITAL CALIPERS, 6928640380839
$83.88
Suitable for 0-6″/0-150mm and 0-8″/0-200mm electronic calipers (thickness of lower jaws? .146″)
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