Grizzly G0561 - Manual (Page 24)

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g0561 7" x 12" Metal-Cutting Bandsaw
Blade Size
the Model g0561 uses 93" x 3 ⁄
4
" bandsaw blades.
grizzly is proud to offer a variety of selections
that can be found in the current catalog and in
SECTION 5: ACCESSOrIES on page 31.
Tooth pitch
usually measured as tpi (teeth per inch), tooth
pitch determines the size/number of the teeth.
More teeth per inch (fine pitch) will cut slower,
but smoother; while fewer teeth per inch (coarse
pitch) will cut rougher, but faster.
As a general rule, choose blades that will have at
least three teeth in the material at all times. use
fine pitched blades on harder metals and coarse
pitched blades on softer metals. When select-
ing blades, refer to
figure 29 for recommended
blade tooth (tpi) and speed (FpM) based on the
workpiece material.
Blade Selection
Tooth Style
When selecting blades, another option to con-
sider is the shape, gullet size, teeth set and teeth
angle—otherwise known as “tooth style." Many
blade manufacturers offer variations of the four
basic styles shown in
figure 27.
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figure 27. Bandsaw blade tooth types.
Tooth Set
three of the most common tooth sets are alter-
nate, wavy, and raker (see
figure 28).
figure 28. Bandsaw tooth sets.
Alternate Wavy raker
Standard: this style is considered to be the
standard because the tooth size and shape are
the same as the tooth gullet. the teeth on these
blades usually are very numerous, have no angle,
and produce cuts by scraping the material; these
characteristics result in very smooth cuts, but do
not cut fast and generate more heat than other
types while cutting.
Skip: this style is similar to a raker blade that is
missing every other tooth. Because of the design,
skip toothed blades have a much larger gullet
than raker blades, and therefore, cut faster and
generate less heat. however, these blades also
leave a rougher cut than raker blades.
Hook: the teeth on this style have a positive
angle (downward) which makes them dig into the
material, and the gullets are usually rounded for
easier waste removal. these blades are excellent
for the tough demands of resawing and ripping
thick material.
Variable Pitch: these blades typically feature
combinations of tooth styles that provide qualities
of both.
blade selection