  The asteroseismic scaling relation, dnu~rho^{0.5}, linking a star's large
frequency separation, dnu, and its mean density, rho, is not exact. Yet, it
provides a very useful way to obtain fundamental stellar properties. Common
ways to make the relation more accurate is to apply correction factors to it.
Because the corrections depend on stellar properties, such as mass, Teff, and
metallicity, it is customary to interpolate these properties over stellar model
grids that include both dnu, measured from adiabatic frequencies of the models,
and the models' stellar density; hence linking both sides of the scaling
relation. A grid and interpolation tool widely used for this purpose, known as
Asfgrid, was published by Sharma & Stello 2016. Here, we present a significant
extension of Asfgrid to cover higher- and lower-mass stars and to increase the
density of grid points, especially in the low-metallicity regime.
