Product Brochure

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Notes:Introduction
Choosing the right file can be confusing; with so many sizes,
shapes and cuts available it is difficult to decide the right one for
the job. The range of Crescent Nicholson
®
files covers every job
task requirement. This booklet has been specially produced to
simplify file selection and application for any file user.
History The file has been with man now
for many years and one of the first
recordings is in the Bible during the
reign of King Saul.This would be
approximately 1090 BC and at that
time files would have been used
for sharpening various types of
primitive tools. From the first files,
the development and evolution can
be traced from stone implements
to files with teeth running at right
angles across the file blank to
present day quality machine-produced files. The first attempt to
cut files by machine was approximately 1490 AD and resulted
from an invention by Leonardo Da Vinci. However, the first
machine which actually cut files successfully was made by the
Frenchman, Chopitel, in 1750.
At this time, files were made from mild material and did not
require annealing. To produce a hardened surface, various
preparations were used to carburize the file teeth. But it was the
inventions of such men as Bernot, Nicholson, Whipple, and Weed
that provided machines capable of producing better files than
those produced by hand.
How a File is Made
Today, various kinds of materials,
product finishes, and working
conditions make file development an
industrial science. File manufacture
involves the study of file steels, file
design, and file performance for all
file applications.
File Steel: Raw stock is cut to proper
length from various widths, thicknesses,
and cross sections, such as rectangular,
square, triangular, round, and half round.
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