Glossary - Bosch GTS18V-08 Operating Instructions Manual

Anti-Kickback Device (also known as dogs or
pawls): Spring-loaded pawls that engage the
work piece as it is being fed through the saw.
They restrict movement of the work piece back
in the direction of the operator.
Arbor: The shaft on which a cutting tool is
mounted.
Barrier Guard: An assembly that consists of
the mounting fork and two side barriers. This
assembly is intended to provide a physical bar-
rier between the operator and the spinning saw
blade.
Bevel: Blade angle relative to the table surface.
Crosscut: A cutting or shaping operation made
across the width of the workpiece cutting the
workpiece to length.
Dado: A non-through cut which produces a
square sided notch or trough in the workpiece.
Featherboard: A device which can help guide
workpieces during rip type operation by keep-
ing workpiece in contact with the rip fence. It
also helps prevent kickback.
Freehand: Performing a cut without a fence,
miter gauge, fixture, hold down or other proper
device to keep the workpiece from twisting dur-
ing the cut and can be a safety hazard.
Gum: A sticky, sap-based residue from wood
products. After it has hardened, it is referred to
as "resin."
Heel: Misalignment of the blade which causes
the trailing or outfeed side of the blade to con-
tact the cut surface of the work piece. Heel can
cause kickback, binding, excessive force, burn-
ing of the workpiece or splintering. In general,
heel cre ates a poor quality cut and can be a
safety hazard.
Kerf: The space in the workpiece where the ma-
terial was removed by the blade.
Kickback: An uncontrolled grabbing and throw-
ing of the workpiece back toward the front of
the saw during a rip type operation.
Leading End: The end of the workpiece which,
during a rip type operation, is pushed into the
cutting tool first.
Molding: A non-through cut which produces a
special shape in the workpiece used for joining
or decoration.
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Glossary

Non-Through Sawing: Any cutting operation
where the blade does not extend through the
workpiece (e.g. Dado, Rabbet).
Parallel: Position of the rip fence equal in dis-
tance at every point to the side face of the saw
blade.
Perpendicular: 90° (right angle) intersection or
position of the vertical and horizontal planes
such as the position of the saw blade (vertical)
to the table surface (horizontal).
Push Block: A device used for ripping-type
operations too narrow to allow use of a Push
Stick. Use a Push Block for rip widths less than
2 inches (.
Push Stick: A device used to feed the workpiece
through the saw during narrow ripping-type op-
eration and helps keep the operator's hands
well away from the blade. Use the Push Stick
for rip widths less than 6 inches (152 mm) and
more than 2 inches (51 mm).
Rabbet: A notch in the edge of a workpiece. Also
called an edge dado.
Revolutions Per Minute (R.P.M.): The number
of turns completed by a spinning object in one
minute.
Ripping: A cutting operation along the length of
the workpiece cutting the workpiece to width.
Riving Knife or Splitter: A device that keeps the
kerf of the work piece open as the material is
cut. This minimizes the potential of the work-
piece binding against the saw blade.
Smart Guard: A system made up of 3 compo-
nents: Riving Knife / Splitter, Anti-Kickback De-
vice, and Main Barrier Guard.
Through Sawing: Any cutting operation where
the blade extends through the workpiece.
Throwback: Event when a small cut-off piece is
caught by the back of the blade and thrown to-
ward the operator.
Workpiece: The item on which the cutting op-
eration is being performed. The surfaces of a
workpiece are commonly referred to as faces,
ends and edges.
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