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Porter-Cable 4212 (29550) Instruction Manual: Box Joints; Cutting The First Workpiece

Porter-cable instruction manual dovetail jig 4210, 4212 (29550).
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BOX JOINTS

Box joints have straight protrusions that interlock and must be
held together by glue. The large amount of gluing surface
provides the strength necessary for large projects.
NOTE:
If you are using the 4210 dovetail jig, you will need the 4213 accessory kit to make this joint. You will need
the 4215 accessory kit for the miniature box joints.
Box joint fingers are spaced in 1" increments (1/2" for miniature).
ITEMS NEEDED
Through Dovetail and Box Joint Template
1/2" diameter straight bit (not provided)
Length of the cutter must be at least
the thickness of the workpiece.
3/4" O.D. Template Guide, 42040
Template Guide Lock Nut, 42239

CUTTING THE FIRST WORKPIECE

Step 1 -
Clamp a scrap board (A) Fig. S1 in the upper clamp (horizontal mounting position) that is the same
thickness as the second workpiece.
Step 2 -
Use the T-handle wrench (A) Fig. S2 to loosen the screw on the left offset guide (B). Move the guide to
the far left.
Step 3 -
Mount the workpiece (A) Fig. S3 in the lower clamp (vertical mounting position) with the outside surface
against the jig base.
A
S1
ITEMS NEEDED FOR MINIATURE
Miniature Dovetail Template
1/4" diameter straight bit (not provided)
At least 1/2" long cutter
3/8" O.D. Template Guide, 42037
Template Guide Lock Nut, 42239
B
A
S2
21
A
S3

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4210, 4212

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