Edging With A Pilot Bit - Craftsman 17540 - 9.5 Amp 1-3/4 HP Plunge Base Router Operator's Manual

EDGING WITH A PILOT BIT (Figs. 14 and 14a)
The arbor-type bits with pilotsare excellent for edge shaping of any workplace edge that
Is either straight,or curved at e curvatureas great or greater than the radiusof thebit to
be used, The ptlotprevents the bit frommaking too deep s cut; and holdtngthe pilot firmly
In contactwith theworkpfecaedge throughout prevents the cut frombecoming too shallow,
Whenever the workptscathickness, togetherwith the deslrad depth ofcut (as adjusted by
router depth setting)are suchthat only the top part of the Edge is to be shaped (leavingat
least a 1/164n+thlskuncut portionat the bottom), the pilot can dds against the uncut
portion,which serves to guide It (see Fig, 14),
If theworkplace Is too thinor the blt set too fewso that there will be no uncut Edge to ride
the pilotagainst, an_xtra boardto act as a guide mustbe placed underthe workplace
(see Fig. 14a), This guide" board must have exactly the same contour- straight or curved -
as the workplace edge. If It is positionedso that its edge isflush with the workplace edge,
the bit will make a full cut (In as far EBthe bit radius), On the otherhand, If the guide Is
positioned as shown In Flg. 14a (out from the workplace edge), the bitwill rr_ke tess than
a fullcut- whichwill alter the shape of the flntshed edge,
NOTE: The size (diameter) of the pilot that ls used determines the maximum cut
width that can be made with the pilot against the workplace edge (the small pilot
exposes all of the bit; the large one reduces this amount by 1/16-fn,). Any of the
piloted cutter bits can be used without a pilot for edge shaping with guides,
Fig. 14
Fig. 14a
Riot
TOP EDGE SHAPING
WARNING: Always secursly clamp your workplace end keep a firm grip 1
on the router base with BOTH HANDS at ell times. Fallurs to do so could result
/
In loss of control causing poEslble sedous personal Injury.
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