I need to check a PCBs holes and hole sizes. I want to check one hole size and its holes at a time. Can I hide other holes sizes and their corresponding holes to just show 1 size.
Yes, FAB 3000 can isolate and display one hole size at a time.
Use "Find / Find NC Tool..." under the Info menu. In the Find NC Tool menu click the Find NC Tool: box, then the down arrow which will display all the NC tools and then select the tool you wish to view.
In the "View As" box check "Isolate" then click OK and just the tool you selected will be shown.
See attached screen shots.