Posted: 05/09/2014 at 20:59
The hole through the head is often shaped so it has a top and a bottom. The wedges usually go on the top side, not the handle side. The head of the shaft is also shaped so the head rests on the top of the handle, so it can't slip down. The wedges are to stop the head slipping off the top of the shaft and go on either side beside the points, if you see what I mean.