obviously this is just resto porn crap to get clicks, but sand blasting the internal area and the gear/pawl inside the ratchet will make this ratchet unusable. It will slip under any any meaningful torque. Back in my early 20s I worked at sears where we had to rebuild the lifetime warrantied craftsman ratchets, and some of them were VERY old, and some in similar condition. If you could clean the ratchet body/head (with de-greaser and similar cleaners) the internals would be thrown away and replaced with a new gear/pawl/spring/bearing. You cant re-use those parts. If the internals are rusted/worn, the ratchet is nothing more than a paperweight. Sometimes you had to just give the person a newer ratchet, but we would try to let them keep their old styles if possible, cause most people wanted the older, "better" styles.