Special Features:

Light guide liquid filled 6 ft antikinking ss cable, detatchable entrance and exit adapters, max fov 60 deg, dov45/125 deg, adj eyepiece with removable eye cup, portable light source 115 vac50/400 hz, metal halide lamp, avg life 300 hrs, stored images transferable external systems, operating temp c -20/+46, protected against dirt/dust/fluids in/around engine

Properties:

A viewing device used to visually inspect items such as cannon bores, internal combustion engine cylinder walls, propellant perforations of rocket motors or similar items, for defects of manufacture, corrosion, scars, erosion, etc., without the necessity of disassembling the item(s). It may or may not have extension tubes to cover the various ranges of inspection. The item is basically a straight-tube telescope using a mirror or prism.