Internal Cylinder Inspection

This inexpensive package comes with a simple boroscope, 90^o side view, 60^o angle of view.   The unit has a useable length of approx. 9", thus allowing a view under the neck, and the thread of the cylinder.
Also supplied is a 6v 20w bulb, which maybe dropped into the cylinder to examine the rest of the cylinder.
Power for both units is from a re-chargeable pack, allowing inspections away from power sources.

All you need for a 100% view of the inside of the cylinder.