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Center Finders —

Three Variations on a Theme

A

N OLD ORGAN-BUILDERfriend showed me this handy home-
made guide for center-drilling holes in the edges of boards to
be doweled and edge-glued. The device consists of five sticks of hard-
wood screwed together in the configuration shown in the top
illustration above.
The sticks should pivot so that the device collapses like a parallelo-
gram. For the drill guide, fit the center strip with a bolt^1 ⁄ 8 in. larger
than the bit size. Then, using a drill press for accuracy, drill a pilot hole
through the bolt using a bit one number larger than the bit you
intend to use for doweling. To use, first align the edges of the boards
and mark off the dowel locations with a square. To center the dowels,
set the device to straddle each board’s edge and squeeze the parallelo-
gram shut. Then slide the device to each mark, and drill.
—JOHNHUENING,Seffner, Fla.

CHAPTER SIX

Huening’s dowel jig

Small’s

drawer-pull

centering jig

Green’s

center-scriber

Bolt, drilled out for bit