Glossary - Powermatic PM1000 RU Operating Instructions And Parts Manual

5.0 Glossary

Arbor: Metal shaft that connects the drive
mechanism to the blade.
Bevel Edge Cut: Tilt of the saw arbor and blade
between 0° and 45° to perform an angled cutting
operation.
Blade Guard: Mechanism mounted over the saw
blade to prevent accidental contact with the cutting
edge.
Crosscut: Sawing operation in which the miter
gauge is used to cut across the grain of the work-
piece.
Dado Blade: Blade(s) used for cutting grooves and
rabbets. A stacked dado set can be used for wider
grooves.
Dado Cut: Flat bottomed groove in the face of the
work-piece made with a dado blade.
Feather-board: Device used to keep a board
against the rip fence or table that allows the
operator to keep hands away from saw blade.
Freehand: Moving the work-piece into the blade
using only the hands, without a fixed positioning
device. (This is a dangerous, unacceptable
procedure – always use appropriate devices to
feed the work-piece through the saw blade during
cutting operations.)
Kerf: The resulting cut or gap made by a saw
blade.
Kickback: An event in which the work-piece is
lifted up and thrown back toward an operator,
caused when a work-piece binds on the saw blade
or between the blade and rip fence (or other fixed
object). To minimize or prevent injury from
kickbacks, see the Operations section.
Miter Gauge: A component that controls the work-
piece movement while performing a crosscut of
various angles.
Non-Through Cut: A sawing operation that
requires the removal of the blade guard and
standard riving knife, resulting in a cut that does
not protrude through the top of the work-piece
(includes Dado and rabbet cuts).
The blade guard and riving knife must be re-
installed after performing a non-through cut to
avoid accidental contact with the saw blade during
operation.
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
as the position of the saw blade (vertical) to the
table surface (horizontal).
Push Board/Push Stick: An instrument used to
safely push the work-piece through the cutting
operation by keeping the operator's hands at a
distance.
Rabbet: A cutting operation that creates an
L-shaped channel along the edge of the board.
Rip Cut: A cut made along the grain of the work-
piece.
Riving Knife: A metal plate fixed relative to the
blade, which moves with the blade as cutting depth
is adjusted. Thus, it maintains not only the kerf
opening in the work-piece, but also the knife-to-
blade distance. A low-profile riving knife sits lower
than the top edge of the blade, for making a non-
through cut.
Splitter (Spreader): A stationary metal plate to
which the blade guard is attached that maintains
the kerf opening in the work-piece during a cutting
operation.
Standard Kerf: 1/8" gap made with a standard
blade.
Straightedge: A tool used to check that a surface
is flat or parallel.
Through Sawing: A sawing operation in which the
work-piece thickness is completely sawn through.
Proper blade height usually allows 1/8" of the top
of blade to extend above the wood stock. Keep the
blade guard down, the anti-kickback pawls down,
and the riving knife in place over the blade.
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