Cross-Hole Inspection Borescopes

Visual inspection with small diameter borescopes is highly effective to find defects, burrs in machining process. One special application is to inspect cross drilled holes, or blind holes. It is critical to remove burrs inside complicated hole structure. With right borescopes or long working distance autofocus microscopes, you can see the every aspects of the cross holes or blind holes inside.  

In some cases, the manual focus borescopes and side-view borescopes are very useful to get a clear image.