Printed from: https://conservationhandbooks.com/toolcare/replacing-hafts-and-handles/punners/
On most punners, the haft is fixed to the head by a rivet. This is usually the point at which the haft breaks. A stronger repair can be made by using a blind or fox wedge. Shave the haft until it fits tightly in the socket of the head, and then make a saw cut...