Drilling Equidistant Holes
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expendable setup for drilling equidistant holes needs only
a piece of scrap wood, a clamp, and a dowel or bolt of the
same diameter as the hole to be drilled.
drill a hole in the scrap and then clamp it to the table.
Have the drilled hole set to the right or left of the bit,
at the distance you wish to maintain between holes.
your work on top of the scrap and drill the first hole in
the desired position. Move the work over and push the dowel
or bolt through the hole in the work into the hole in the
scrap. You may then drill as many additional equidistant holes
as you wish by moving the work and replacing the dowel each
under your drill bit will not provide a good back-up for much
soft wood drilling; you must be careful to avoid feathering
or burring soft wood. Hard wood should not be too difficult
to work with in this respect, but care must be taken. For
soft wood, extra dowel holes can be easily drilled in the
jig is particularly useful for repetitive drilling operations,
such as making holes for adjustable clips for shelves.