Why do you have to use linseed oil to knock in a bat?
We use linseed oil because it soaks into the the bat and makes
it moist and knocking in becomes much easier but make sure to use
raw linseed oil and not boiled linseed oil. The bat does not soak
boiled linseed oil. Raw linseed oil not only increases the life of
the bat but also makes the performance of the bat better.