borescope

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borescope

, bore scope (bor′skōp″)
Any device used to look inside small spaces or internal organs. It has three basic parts: an eyepiece on one end, a lens on the other, and a medium (such as a fiberoptic cable) that transmits light from the lens to the eyepiece.
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References in periodicals archive ?
The Hawkeye Precision Bore scope series was specifically designed for use by shooters, gunsmiths, firearms manufacturers and forensic scientists to be used specifically in firearms.
Looking through the bore scope, you can measure deviations from the centerline and determine how much to adjust the positions of machine components in order to return the system to alignment.
We used a bore scope and found a rough spot in the rifling in the last inch of the barrel.
During recent engine bore scope inspections, this technique detected 14th stage outlet guide vanes partially liberated on two separate aircraft.
This business unit specializes in contract services for procedures like bore scope alignment, screw and barrel installations, machine maintenance and modifications or basic preventive maintenance on extruders and injection molding machines.
I checked the interior using my Hawkeye Bore Scope and confess to being amazed at the high quality of the bore and chamber.
Lacking a bore scope, it's difficult to know when you have removed it all.
Generally, if you'll examine the bores of older .22 rifles with a bore scope, you'll see plenty of evidence of rust and pitting.
In addition to an optional field tripod ($2,000), it has a polar-alignment bore scope ($295) that threads into the MX's polar axis.