Special Features:

Designed to inspect first stage turbo vanes and first stage blades; 20.688 in. Assembled lg; bore size accommodated , 2.25 in. Max lg, 0.350 in. Min dia, 0.360 in. Max dia, 55 degrees prism head; electrical operating data, ac, dc, 115 v, 60 hz, 7.5 v lamp, lamp not rated for amp; w/carrying case, accessories and or attachments, battery pack 1, lamp 51, transformer 1

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.