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w w w . m a l c o t o o l s . c o m
SHIPLAP FABRICATION
#1
GRAY
#2/4
DARK
ORANGE
#2/4
DARK
ORANGE
#3
ORANGE
#5
BLUE
W1
H1
W2
H2
Face the factory made female shiplap edge of a
ductboard section. Place the FasGroov #1 Tool
against the left edge of the ductboard. Push the
FasGroov #1 Tool closely along the left edge to
produce a female shiplap groove.
Set the FasGroov Square on top of the duct-
board. Place the ruled edge along the factory
made female shiplap edge. Measure the desired
inside duct width dimension (W1) and align with
the right edge of cut made previously by the
FasGroov #1 Tool. Place the FasGroov #24 Tool
against the slide edge and push along to produce
a right hand shiplap groove.
Move the FasGroov Square to the right and mea-
sure the desired inside duct height dimension
(H1). Align dimension with the right edge of cut
previously made by the FasGroov #2/4 Tool.
#1 TOOL
#2/4 TOOL
#3 TOOL
CUT FLAP
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