
Model D4116
Doweling Jig
Instruction Sheet
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Introduction
Use the Model D4116 Doweling Jig to drill aligned and
opposing dowel holes in two boards to be joined.
1
Included are two each of
⁄4", 3⁄8", and 5⁄16" threaded drill
guides for making a pair of dowel holes at a time without
7
having to reposition the jig. Additionally, there are
1
⁄2" drill guides bored into the center bar.
and
⁄16"
A
B
When properly clamped, the doweling jig automatically
5
centers the drill guides onto boards up to 2
⁄8" in width.
Identification (see Figure 1)
A. Threaded Holes: Accept the threaded drill guides
that can be installed as a pair or individually.
7
⁄16" & 1⁄2" Drill Guides: Non-threaded holes in the
B.
middle bar that provide additional sized drill guides.
C. Vise Screw: Controls the clamping pressure of the
extruded aluminum vise plates.
1
⁄4", 3⁄8", & 5⁄16" Drill Guides: When installed in the
D.
threaded holes of the middle bar, provide drill guides
for the drill bit.
C
D
Figure 1. Model D4116 identification.
COPYRIGHT © OCTOBER, 2010 BY WOODSTOCK INTERNATIONAL, INC.
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE OR FORM WITHOUT
THE WRITTEN APPROVAL OF WOODSTOCK INTERNATIONAL, INC.
Printed in Taiwan#13339TS

Operation
Board 1
Board 2
Alignment Marks
For Dowels
1. Align the two boards to be joined, then make marks
on one side of the boards where the dowel holes will
be drilled (see Figure 2).
2. Install the appropriate drill guides into the middle
bar of the jig where applicable, or use the nonthreaded drill guides of the bar.
3. Separate the boards, align the appropriate mark on
the bottom of the middle bar with the mark on one
of the boards (see Figure 3), then firmly clamp the
jig to the board.
D4116 Doweling Jig
4. Insert the correct size drill bit into the drill guide
and against the board, then start the drill and make
a dowel hole that is the right depth for your operation.
5. Repeat Steps 3–4 for the other board.
Maintenance
Periodically, wipe away dust and debris from the vise
screw and the threads of the drill guides, then apply a
thin coat of light machine oil to ensure smooth operation
of these parts.
Figure 2. Alignment marks on the boards
for the dowel positions.
Drill Guides
Alignment Marks
Figure 3. Doweling jig setup.
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