Craftsman 172.11625 Owner's Manual page 17

ORBITAL MOTION (See Fig. 8)
As shown in Figure 8, the orbit of the sander is 1/16-inch in diameter so the
sandpaper moves in tiny circles at high speed.
This orbital action duplicates a "hand sanding" motion for more aggressive
sanding as you push the sander forward. This powerful orbital action is ideal
for heavy-duty sanding applications, such as:
1. Removing old finishes
2. Smoothing rough wood
3. Sanding stock down to required dimensions
4. Finishing surfaces that are to be painted
FLUSH SANDING (See Fig. 9)
Your sander will allow you to flush sand corners. You can use the front and
sides or your sander for flush sanding. DO NOT use the rear of the sander
for flush sanding.
ALWAYS remove the sander from the workpiece before turning it off.
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