Criterion was established in 1935 as a job shop in Beverly Hills, California. We produced parts for many industries as well as the movie industry. In 1953, we moved our operation to Costa Mesa, California to better service the defense industry.
We have specialized in precision boring products.
Whenever I go to a home improvement store I always browse
through the tool sets that are on display. I look at them because I like tools
that make my work easier but I also want to see how they are packaged and
marketed. I think one of the best at this is Dremel. They package sets of bits
for sharpening lawn mower blades, cleaning and polishing golf clubs, removing
grout and many other general and special purpose applications.
DBL-202B Boring Set
Creating a boring set package is just not as exciting. There
are few variables; the diameter of the bore, the depth of the bore, the style
of spindle and the material to be bored. For many years, Criterion has offered
some basic boring head sets mostly for manual milling machines. It made sense
to offer a DBL-202 bring head, R-8 shank all of the brazed boring tools
thatwould fit in the head (either
in C-6 or C-2 carbide) packaged in a nice case where it could all be stored
because manual milling machines did a wide variety of work.
As CNC machining centers entered the manufacturing arena
they were not used in the same manner as the manual milling machines they were
used for production because they made many parts exactly the same because the
computer controlled the machine movements. Because they were a production
machine so it did not make sense to offer a kit when the CNC milling machines
did not require the same versatility as the manual milling machines.
CB-202B Boring Head, CT40 Tool Holder and Boring Bar
CB-202B Boring Set
The continued development and progression of using CNC
machining centers has made them into excellent prototype machines. The capability
of accurately producing a prototype part to the print is incomparable to a
manual milling machine.Because of
this Criterion has added 3 new boring sets to our product line. Our CB-202B
boring head, a set of indexable insert boring bars, a cross hole boring bar and
either a CT40, BT40 or HSK63A shank in a convenient storage case give the
versatility to produce bores from .250” to 6.687” in diameter.