  The overlap fermion offers the tremendous advantage of exact chiral symmetry
on the lattice, but is numerically intensive. This can be made affordable while
still providing large lattice volumes, by using coarse lattice spacing, given
that good scaling and localization properties are established. Here, using
overlap fermions on quenched Iwasaki gauge configurations, we demonstrate
directly that the overlap Dirac operator's range is comfortably small in
lattice units for each of the lattice spacings 0.20 fm, 0.17 fm, and 0.13 fm
(and scales to zero in physical units in the continuum limit). In particular,
our direct results contradict recent speculation that an inverse lattice
spacing of $1 {\rm GeV}$ is too low to have satisfactory localization.
Furthermore, hadronic masses (available on the two coarser lattices) scale very
well.
