Next are the orbital sanders.
These move the pad in an orbit around a
fixed pivot point. The DS 400 EQ (pic-
tured) is a very small and lightweight
sander that employs a triangular shaped
pad that moves in a 2mm (5/64”) orbit.
Its companion is the RS 400 EQ (not pic-
tured) which has the same small size and
orbit but with a rectangular pad.
Both are so much smaller than most of
the other Festool sanders that they are
ideal for getting into corners or areas like
the inside of the box pictured above
where the RS 2 E (on the left) and the
ETS 150 3 (on the right) simply won’t fit.
While pure or-
bital sanders
from other
manufacturers
often will leave
very noticeable
circular scratch
patterns, the
small diameter
orbit on these
two leaves a
nearly imper-
ceptible scratch
pattern with all
but the largest grits. They are not in use
every day in my studio like the other Fes-
tool sanders are, but when the small size
or tight corner ability is needed, they are
really handy.
The other pure rotary sander, the RS 2 E
(pictured below) is another story. It is a
big, powerful work horse that is in my
hands virtually every day. It has a bit