Description:

Monel, chrome plated; 0.165 in. Dia porm 0.003 in., straight forward vision, viewing head not interchangeable, incandescent lamps mtd adjacent to objective lens for illumination, lamps operate from 2.5 to 12v ac or dc, optical glass coated .

Special Features:

Monel, chrome plated; 0.165 in. Diameter porm 0.003 in., straight forward vision, viewing head not interchangeable, incandescent lamps mtd adjacent to objective lens for illumination, lamps operate from 2.5 to 12v ac or dc, optical glass coated and factory sealed, battery handle uses standard /d/ dry cell batteries

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.