Special Features:

Designed to inspect int combustion engine cylinder walls through sparkplug ports; bore size max lg min diameter max diameter a/a; w/removable head; bottoming head; elect oper ac 110 through 120 v 60 hz 12 v lamp; w/carrying case; accessories and/or attachments 1 ea current controller, instr lt cord; lamp assembly; pwr supply cord

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.