CMT
introduces the best thing to happen to tooling since orange router
bits.
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Orange saw
blades! Not just any colored blade, but CMT high quality circular
saw blades with trademark orange Teflon® industrial coating. Now
you can immediatley recognize a CMT blade by
its orange color.
To create saw blades that are the best on the
market, CMT goes to the same great lengths to
produce a top quality blade as router bits, beginning with
throughly researched design concepts. Hook and grind angles, carbide
compositions and gullet designs are studied to give CMT blades the most
efficient cutting performance. CMT also uses only the best raw
materials available in the world - super 42-44
Rockwell hardened steel from Germany and
Cerametal micrograin carbide.
CMT saw blades are precisely worked on a
series of CNC machines from start to finish. |
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Laser cut |
Grinding and
tensioning |
Bore and seat
grinding |
Brazing and sanding
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The steel body of the
blade is laser cut, not die cut, from superior
strength steel. Laser
cutting allows for use of a higher hardness level of steel than
die-cutting. Softer steel tends to warp more easily. Laser-cut
blades are not subjected to the stresses of the
stamping process and remain flat and accurate
for years of continuous service.
The next step is
the smoothing and tensioning of the plate surfaces,
which are evidenced by the superior finish and
visible tension ring that runs around the circumference of
the blade. This phase is done on computerized machinery and guarantees
blade stability and uniformity. After tensioning, the bore and seats for
the carbide teeth are ground. A smooth finish on the bore will
make sure that the blade can be accurately mounted
to the saw arbor and will have perfect
concentricity during rotation. |
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Teflon® Industrial Coating |
Sharpening
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Just as
important is accurate grinding of the tooth seat for a sure fit of the
carbide tip and maximum contact for brazing. Micrograin carbide teeth are
applied with special silver-copper-silver brazing compound. This
combination of metals is unique, in
that, when the steel body and the carbide
tipped teeth are heated during brazing, they expand and contracts
with the
blade. |
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The blades are then
sanded, degreased and a coating of trademark
orange Teflon® is baked on. Teflon®
Industrial Coating is a stratified coating that forms layers when
applied. This low friction, non-stick Teflon® coating provides
your blade with advantages that you can't get
from a standard painted or chrome
plated blade. |
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- Teflon® coated
blades stay sharper longer - In woodworking
tests, the Teflon® coated
blade cut 55% more linear feet of wood than
painted blades and 50% more than chrome-plated
blades.
- Teflon® coated
blades are rust resistant - In accelerated tests, the Teflon® coated blades
effectively sealed out moisture that caused painted and chrome-plated blades to
rust. No oils, greases or rust-preventatives needed.
- Teflon® coated
blades clean up easier - The non-stick nature of Teflon® makes blade clean
up easy. Even after extensive use, Teflon® coated blades
wiped clean of gum and resin build up.
- Teflon® coated
blades use less energy - Ammeter readings taken from a 7-1/4" circular saw
proved that Teflon® coated blades used 38% less amperage than painted
blades and 35% less than chrome-plated blades. By using less amperage,
Teflon® coated blades can help save wear and tear on saw motors
and reduce energy costs.
- Teflon® blades
perform smoother, sharper cuts - In tests conducted in wood, Teflon® blades
did not gum up or collect resin like normal blades do. The
self-lubricating Teflon® finish sheds sappy wood residue before
it builds up and leaves the blade clean to
make sharper, more accurate cuts.
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The final production
step is the sharpening of the micrograin carbide
teeth. Early on CMT
carefully studied and researched the individual bevel tooth design and tooth
combination for each blade according to its use. During the sharpening
phase each angle, down to the milacron, is precise
using multi-axis CNC machines for absolute
razor sharp tips.
An informative Teflon® silkscreen to the side of every blade provides
immediate details about the blade type and its
use.
Lastly, the CMT blade is packed in a US Patent
design carry case for safe and convenient storage
when not in use. Made
of tough HDPE plastic for years of reuse. |
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© 1998 CMT Utensili srl
- CMT, the CMT logo and orange color on the surface of woodworking
tools are trademarks of CMT Utensili srl.
®Teflon is a registered
trademark of DuPont. Information regarding Teflon® courtesy of
DuPont.
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