-22-
Model G0458Z (Mfd. Since 7/19)
Choosing Sandpaper
There are many types of sanding belts to choose
from. We recommend aluminum oxide for general
workshop environments. Below is a chart that
groups abrasives into different classes, and shows
which grits fall into each class.
The general rule of thumb is to sand a workpiece
with progressively higher grit numbers, with no
one grit increase of more than 50. Avoid skipping
grits; the larger the grit increase, the harder it will
be to remove the scratches from the previous
grit.
Ultimately, the type of wood you use and your
stage of finish will determine the best grit types to
install on your sander.
Grit Class Usage
60 Coarse Fast sanding, dimen-
sioning, and glue
removal.
80–100 Medium Removing planer
marks and initial fin-
ish sanding.
120–180 Fine Finish sanding.
Sanding Tips
• Replace coarse grit sandpaper with a finer
grit to achieve a smoother finish.
•
Raise the table a maximum of
1
⁄4 turn of the
handwheel until the workpiece is the desired
thickness.
• Reduce snipe when sanding more than one
board of the same thickness by feeding them
into the sander with the front end of the sec-
ond board touching the back end of the first
board.
• Feed boards into the sander at different plac-
es on the conveyor to maximize sandpaper
life and prevent uneven conveyor belt wear.
• DO NOT sand boards less than 6" long or
less than
1
⁄8" thick to prevent damage to the
workpiece and the drum sander.
• Extend the life of the sandpaper by regu-
larly using a PRO-STIK
®
sanding pad (see
Page 26).
• When sanding workpieces with irregular
surfaces, such as cabinet doors, take very
light sanding passes to prevent gouges.
When the drum moves from sanding a wide
surface to sanding a narrow surface, the load
on the motor will be reduced, and the drum
will speed up, causing a gouge.
• DO NOT edge sand boards. This can cause
boards to kickback, causing serious personal
injury. Edge sanding boards also can cause
damage to the conveyor belt and sandpa-
per.
• When sanding workpieces with a bow or
crown, place the high point up (prevents the
workpiece from rocking) and take very light
passes.
• Feed the workpiece at an angle to maxi-
mize stock removal and sandpaper effec-
tiveness, but feed the workpiece straight to
reduce sandpaper grit scratches for the finish
passes.
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