Your grandfather didn’t hand you his tools so they’d sit in a box. Make something.

Tools handed down are not souvenirs. They were given because the person believed you would use them, and a box of them sitting untouched turns a working inheritance into an ornament. Using them, badly at first, is the thing that keeps the skill and the person attached to each other rather than filed away.

Find one small thing to build or fix with them this month. A shelf, a chair, a bike. Expect it to be worse than theirs, which is what the first one is for.