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 Rack
N Roll is a builder of custom bicycles in Philadelphia, Pennsylvania. Like
Benjamin Franklin before him, he's also a mechanic and an inventor. Franklin's discoveries, improvements, and inventions
may be more prolific, but the Founding Father would probably be proud of this modern-day
tinkerer. Back in 1786, Ben Franklin invented a device called the Long Arm for
retrieving books from high shelves. Almost 225 years later, Rack N Roll
designed an extension so that bike builders can use flexible hones to deburr seat-posts
that are over a foot long.
Cylinder Hone
Extensions
Brush Research Manufacturing (BRM) admires "Yankee
ingenuity," too, but our Los Angeles, California company already provides extensions
and other accessories
for our Flex-Hone tool. Built with a stiff metal stem, flexible nylon
filaments, and abrasive globules that some users call "dingleberries", BRM's patented
brush tool mounts in a handheld electric drill and is a favorite of bike
builders, gunsmiths, and automotive hobbyists alike. For surface finishing applications
with longer-bore requirements, BRM offers pipe nipple adaptors and pipe
extensions for our cylinder
honing tool.
Pipe Nipple Adaptors
Pipe nipple adaptors are crimped to the stem of the brush
tool and available in standard National Pipe Thread (NPT) tapers. Though sold
separately, these Flex-Hone adaptors are intended to be factory-attached when
the ball hone (as our
flexible hone is sometimes called) is ordered. When ordering pipe nipple
adaptors, please note that the catalog number indicates pipe size. For example,
18NPT adaptors have a pipe size of 1/8" NPT. To see how pipe sizes relate to
Flex-Hone sizes, please
visit this page on the BRM website and then click the Product
Specifications link under Pipe Nipple Adaptors.
Pipe Extensions
Pipe extensions are designed to meet longer-bore
requirements and are built for male-threaded pipe nipple adapters, which are
sold separately. BRM's Flex-Hone extensions are either 18" or 36" long and come
in four types: 18 x 18, 18 x 36, 14 x 18, and 14 x 36. When ordering, please
note that the catalog number indicates first the NPT
taper and then the length. For example, the 18 x 18 extension has an NPT
thread of 1/8" and a length of 18". The 18 x 36 pipe extension also has an NPT
thread of 1/8", but a length of 36". For
complete information about BRM's pipe extensions, please visit this page
on our website and then click the Product Specifications link under Pipe
Extensions.
Author's Note: This CR4 Blog Entry originally appeared in BRM's
Flex-Hone Blog.
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