At the handles the brass ring is already fixed and a 5mm hole is drilled.
If the shank of your tool is thicker, you need to re-drill the holes yourself to the required diameter.
Handles made of precious woods (American walnut, paduk and others) are equipped with a removable brass ring for hanging, as well as a more massive brass protective ring. This applies to any shape of handle. Hanging rings can also be ordered for beech handles. (starting from 22/08/21)