  We study the system of D6+D0 branes at sub-stringy scale. We show that the
proper description of the system, for large background field associated with
the D0-branes, is via spinning chargeless black holes in five dimensions. The
repulsive force between the D6-branes and the D0-branes is understood through
the centrifugal barrier. We discuss the implication on the stability of the
D6+D0 solution.
