Rake Angle – The angle the tooth face makes
with respect to a perpendicular line from the back
edge of the blade. It is positive when the tooth
angles forward in the direction of the cutting action
and negative when it angles backward from the
direction of the cutting action.
Raker Set – A saw tooth pattern in which one
tooth is set right, the next to the left and the third
i
s straight.
Regular Tooth (Conventional tooth) – A tooth
form consisting of a deep gullet with a smooth radius
at the bottom.
Set – The bending of teeth in a saw blade to the
left and/or right of center. The setting of teeth
enables a saw blade to cut straighter, to clear the
c
hips from the kerf, and to allow the back of the
b
and to clear the cut and not bind.
Side Clearance – The difference in dimension
between the set of the teeth and the back of the
blade. It provides space for maneuvering the band
in contour cuts, prevents lead when making straight
cuts and minimizes transfer of frictional heat to
the work.
Skip Tooth – A tooth form consisting of a shallow
gullet with widely spaced teeth to provide for
ample chip clearance. 0
o
rake angle.
Strippage – When one or more teeth are pulled or
break out of a saw blade.
Twist – The tendency of a saw blade to spiral
after use.
Wavy Set – A saw tooth pattern having one group
of teeth set to the right and the next group set to
the left to give the appearance of a wave viewed
from the top of the blade.
Blade Tension – The direct pull (in pounds) on
the blade.
Beam Strength – The resistance a saw blade has
to back deflection when subjected to the edge
thrust of feed pressure.
Camber – An arcing or bending of the back or
cutting edge of the saw blade. In positive camber
the cutting edge arcs backward; in negative
camber the cutting edge arcs forward.
Carbon Steel – The result of carbon being added
to iron in the making of steel.
Chatter – Rumbling sound in the machine caused
by trying to take too heavy a cut. The sound comes
from overloading the machine.
Chip – A small fragment of material removed by
each tooth on the cutting edge.
Chip Clearance – The gullet area between
two teeth.
Cutting Rate – The speed at which the cross
sectional area of the workpiece is cut, expressed
in square inches of cutting per minute.
E.T.S. (Every Tooth Set) – Each tooth is
alternately set left then right, used generally in
woodworking and for non-ferrous metals. Also
known as alternate set. Spring Steel blades only.
Feed – The pressure exerted by the workpiece
against the cutting edge of a saw blade expressed
in pounds.
Feed Rate – The linear travel of the workpiece into
the blade, usually expressed in inches per minute.
Flex Back – Saw blade with hardened teeth but a
relatively soft back.
Gullet – The space within the curved area between
two saw blade teeth.
Hard Back – A type of high carbon, spring
tempered back, saw blade.
Hook Tooth – A tooth form consisting of a
shallow gullet and widely spaced teeth having
a positive raker angle.
Kerf – The slot made by a cutting tool in
parting material.
Pitch – The number of teeth per inch in a saw blade.
Points – The tips of teeth in a saw blade.
Glossary of Band Saw
Blade Terminology
(3 pages)
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