Gunsmith hits bull's-eye with borescope
Of all the tools on Gunsmith Clay Spencer's workbench in Scottsville, VA, none is more
important or used more often than his Circon ACMI borescope. He uses it to inspect every
millimeter of every rifle barrel he makes.
Available in a variety of sizes, a borescope is a slender tube containing a combination
of lenses, mirrors, prisms, and glass rods or fiber optics that allow the viewer to
examine small, inaccessible areas.
Clay Spencer uses a Circon borescope to inspect a rifle barrel.
Originally used exclusively in medicine, today's borescope technology plays an
increasingly important role in industrial, non-destructive inspection and testing.
However, the benefit of using a borescope is nothing new to Spencer. "For about 18
years I used a standard medical borescope. It worked well enough, but I wasn't able to do
everything I wanted with it," Spencer says.
About five years ago, he contacted Marie Capiris at Circon ACMI Industrial, Stamford,
CT, and told her exactly what he needed in a borescope. Circon ACMI Industrial provides
businesses around the world with a wide variety of borescopes and other equipment for
diagnosis and inspection.
Circon offers more than 180 models of standard rigid borescopes, each providing sharp,
accurate imaging. Complete with focusing eyepieces, the borescopes accommodate
photographic equipment for documentation and enlarged displays, and allow viewing angles
of 0, 45, 90 and 110 degrees.
"Sometimes even our more than 180 models of borescopes aren't enough. Some
customers have very special requirements," says Capiris.
For several months, Capiris worked with Spencer to find the exact combination of
camera, light source and lens that would work best for the gunsmith to examine rifle
"When I finally decided exactly what I wanted, the folks at Circon created it for
me. I use it constantly to inspect the interior finish of my rifle barrels," Spencer
Circon ACMI created a 5 mm borescope, with a 45-degree viewing angle for Spencer.
Circon ACMI, Industrial Division, 300 Stillwater Ave., Stamford, CT 06902-3640.
Phone: (203) 357-8300 or (800) 325-7107 ext. 7. Fax: (203) 328-8717 Circle 163