Instead of using power tools with mortar rake attachments, it may be more suitable for you to use hand-operated tools. These include:
Plugging chisel
Brick rake
Why use hand tools for mortar raking?
A mortar rake requires a power tool, whereas a hand-powered tool only requires human effort. This is a cheaper alternative if you’re only raking a small area.
The choice is yours when it comes to mortar raking!
Find the tools and the methods that suit you best.