Mortar rakes fit into a variety of power tools. The ones most commonly used in the UK are: angle grinders, drills and SDS plus drills.
Different types of mortar rake are designed for different power tools.
You can tell which type of power tool your mortar rake is designed for by looking at the shank.
Some shanks are cylindrical and have their threads on the inside (internal female threads).
Shanks with a hollow interior like this are designed to be screwed onto an angle grinder’s spindle (which has external male threads).
This is another example of a hollow shank with internal female threads. Although it is hexagonally-shaped, it also screws on to the spindle of an angle grinder.
A mortar rake with a solid hexagonal shank is designed to be gripped by the jaws of a drill chuck.
This mortar rake is designed for an SDS plus drill, and has an internal female thread. It fits onto an adaptor which is designed for the chuck mechanism of an SDS plus drill.
Here, the shank of the mortar rake has a male external thread and so screws into an adaptor that has a female internal thread.
The adaptor has the same cylindrical internal thread as the first type of shank shown on this page and therefore screws onto the spindle of an angle grinder.
It is a good idea to double check with the manufacturer or to look over the product description to make sure that you have the correct power tool or mortar rake as not all power tools can work with all mortar rakes.