One of the most innovative, though
specialized, power sanders to come along
in recent years is the triangle sander
(also known as a detail sander or corner
sander). These sanders feature an oscillating
triangular sanding head that
vibrates back and forth in tiny sweeping
arcs. The oscillating motion will leave
sanding marks, but you can prevent this
by keeping the sander moving, and not
applying too much downward pressure.
Only a very light touch is required.
The detail sander's main advantage is
that you can sand into corners. I find it
especially useful for removing dried glue
squeeze-out in the corners of cabinet
carcasses and drawers, but there are a
host of other applications. In general, it
speeds