Kobalt K7343 Mode D'emploi page 21

18. Edging with a pilot bit
18a
Arbor-type bits with pilots are excellent for shaping the
edge of any workpiece that is either straight or curved, if
the curvature is at least as great as the radius of the bit to
be used.
The pilot prevents the bit from making an excessively
deep cut, and holding the pilot firmly in contact with the
edge of the workpiece throughout the operation prevents
TOP SHAPING
the cut from becoming too shallow.
When the thickness of the workpiece and the desired
cutting depth (as adjusted by router depth setting) are
18b
such that only the top part of the edge is to be shaped
(leaving an uncut portion at the bottom that is at least
thick), the pilot can ride against the uncut portion,
1/16
in.
EDGE
which serves as a guide.
If the workpiece is too thin or if the bit is set too low, such
that there will be no uncut edge against which to ride the
pilot, an extra board must be placed under the workpiece
to act as a guide. This "guide" board must have the WHOLE EDGE SHAPING
same contour – straight or curved – as the edge of the
workpiece.
If it is positioned so that its edge is flush with the edge of
the workpiece, the bit will make a full cut (as far in as the radius of the bit). If the guide is positioned
out from the edge of the workpiece, the bit will make less than a full cut, which will alter the shape
of the finished edge.
NOTICE: The diameter of the pilot that is used will determine the maximum width of the cut that
can be made with the pilot against the edge of the workpiece. A small pilot exposes the entire bit,
while a large pilot reduces this amount by 1/16 . Any pilot cutter bit can be used without a pilot for
in
edge shaping with guides.
WARNING: Always clamp the workpiece securely and keep a firm grip on the
router handles (C) with both hands at all times. Failure to do so could result in loss of control,
causing possible serious personal injury.
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