User Guide

www.malcotools.com
Hand Tool blade height
adjustment:
FASGROOV #1 TOOL
Push the FasGroov #1 Tool along the left edge
of a test piece of ductboard. Measure the depth
of cut of the female shiplap groove, it should be
half the thickness of the ductboard (see illustra-
tion).
If adjustment is needed: (1) Turn the blade
adjustment knob counterclockwise to lower the
blade for a deeper cut or (2) Turn the blade
adjustment knob clockwise to raise the blade
for a shallower cut. Repeat adjustment until the
proper depth of cut is achieved.
FASGROOV #2/4 AND #3 TOOLS
Push the FasGroov #2/4 Tool and FasGroov #3
Tool through a test piece of ductboard. Measure
the amount of fiberglass remaining between the
foil backing and the deepest part of the shiplap
cut (see illustration).
If adjustment is needed: (1) Turn the blade
adjustment knob counterclockwise to lower the
blade for a deeper cut or (2) Turn the blade
adjustment knob clockwise to raise the blade for
a shallower cut.
Repeat adjustment until the proper depth of cut
is achieved.
#1 TOOL
Adjustment
knob
Blade
1”
1/2”
3/4”
1/16”
FGV24
1/16”
FGV3
1/8”
FGL24
1/8”
FGL3
1”
1”
#2/4 TOOL #3 TOOL
#1 #2/4 #3 #24
#1
6