Special Features:

9used to view (inspect) interior of repaired components; 11mm dia; 350 cm lg; 90 degrees up/down; 90 degrees left/right; c/o rubber eyepiece shield (er-g), light guide plug adapter (lga-6m ii); carrying case; adapter ring for 49 mm diameter lens (bayonet mount)ftld

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.