Glossary - Bosch GTS15-10 Operating/Safety 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 re-
strict movement of the work piece back in the di-
rection of the operator.
Arbor: The shaft on which a cutting tool is mount-
ed.
Barrier Guard: An assembly that consists of the
mounting fork and two side barriers. This assembly
is intended to provide a physical barrier 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 work-
pieces during rip type operation by keeping work-
piece 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 during the cut
and can be a safety hazard.
Gum: A sticky, sap-based residue from wood prod-
ucts. After it has hardened, it is referred to as "res-
in."
Heel: Misalignment of the blade which causes the
trailing or outfeed side of the blade to contact the
cut surface of the work piece. Heel can cause kick-
back, binding, excessive force, burning of the work-
piece 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 mate-
rial was removed by the blade.
Kickback: An uncontrolled grabbing and throwing
of the workpiece back toward the front of the saw
during a rip type operation.
Leading End: The end of the workpiece which, dur-
ing a rip type operation, is pushed into the cutting
tool first.
Molding: A non-through cut which produces a spe-
cial shape in the workpiece used for joining or dec-
oration.
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 distance
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
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Glossary

as the position of the saw blade (vertical) to the
table surface (horizontal).
Push Block: A device used for ripping-type op-
erations too narrow to allow use of a Push Stick.
Use a Push Block for rip widths less than 2 inches
(51 mm).
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 min-
ute.
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 workpiece bind-
ing against the saw blade.
Smart Guard: A system made up of 3 components:
Riving Knife / Splitter, Anti-Kickback Device, 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 toward
the operator.
Workpiece: The item on which the cutting opera-
tion is being performed. The surfaces of a work-
piece are commonly referred to as faces, ends and
edges.
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