Love tinkering in my spare time. Probably most often use the hammer, but the mounting of the striker on the handle with a wedge it seems to me unreliable. So I decided to make this connection otherwise. Cut from steel plate and rectangular washer and drilled in its center two holes. Put on the handle of the hammer and wedged it through the washer two screws. They keep better than any wedge.
Dima SIZOV, senior Povarovka, Moscow region