When Isadore Shor first started his jewelry supply business, around the turn
of the century, one of the few dozen things he carried in his satchel was Busch
burs. Shor still handles the Busch bur line, as well as other brands of burs
from other countries such as Switzerland and England.
In standard 3/32"
shank burs, Shor carries 4 brands made of tungsten vanadium as well as 1 brand
high speed burs.
Busch Burs- Long time
jeweler's favorite, the first bur introduced into the U.S., introduced by
Isadore Shor around 1918. Made in Germany with a reputation for quality. For
years, when a jeweler asked for a bur, "Busch" and bur were synonymous.
Grobet Burs- Made in
Switzerland, with typical Swiss quality and precision in every bur. The burs
are ground on modern equipment and are held to close manufacturing
specifications.
EuroTool Burs- Made in
Switzerland. Our finest quality tungsten vanadium bur. Satisfaction
guaranteed.
Klein Burs- Made in
England. Equal or better in quality to any of the better known brands of
tungsten vanadium steel burs. Manufactured on the most modern equipment with
methods which give Klein burs the edge in economy without sacrificing any
quality. Satisfaction guaranteed.
High Speed (HS) Burs- Made
in the U.S. High Speed burs have always been the longest lasting, with an
average life expectancy of 10-20 times that of the standard tungsten vanadium
bur. Unlike standard burs, which are packed in boxes of 6, the HS burs are
available individually. In the long run, these are, by far, the most
economical burs to buy.
On some burs, there are 2 different kinds of "cut" available- "CC" also
called "crosscut" and "SC" also called single cut or just "regular
cut" or "standard". Unless a bur is designated CC or crosscut, it's a
single cut bur.
What's the difference between cross cut and single cut?
The illustration to the right will make it clear.
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