The traditional method of fixing the hammer on the handle is wedging. Over time, however, the knot loosened and it is necessary to change the wedge or pen.
I suggest to fix a clogged wedge with a screw or rivet passed through the bore in the sidewall of the through hole.
Recommend to read
START IN THE “SMALL” SPACE
Build model rockets. The first manned flight into space, our compatriot Yuri Gagarin in 1961 was the beginning of a new the directions of technical creativity — rocket-and-space...
“WHITE ELEPHANTS” AND “GRAY HORSES”
For the UK the 90-ies of the XIX century was both a time of triumph and anxiety. On the one hand, its fleet was still able to oppose to each ship, any enemy two or even three. On the...