I find it useful to have 2 of each cone spanner- one occasionally finds a hub which really needs them, but for the home mech, yup one of each should do- and for the lock nut an adjustable is not much worse than a "proper" spanner.
Park are very nice indeed, but even their cone spanners don't last forever- you will eventually find a cone spanner-eating hub......
I find it useful to have 2 of each cone spanner- one occasionally finds a hub which really needs them, but for the home mech, yup one of each should do- and for the lock nut an adjustable is not much worse than a "proper" spanner.
Park are very nice indeed, but even their cone spanners don't last forever- you will eventually find a cone spanner-eating hub......