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
A BABY SEAT
Child loves to sit with the adults at one table. Make it personal "chair", it's easy. Take a chair and extends his legs with wooden rods and metal sleeves from scraps of pipe of suitable...
RIVETS? ANY!
This simple device will allow, if necessary, to obtain the desired rivet diameter and length. Steel angles from rolled steel clamped in a vise, with the line connector mark and drill...