To easily remove weeds from control joints in your concrete driveway, use an angle grinder with a wire wheel. I use a 4.5″ Ryobi brushed, cordless angle grinder. Don’t use a brushless angle grinder because it can’t be used for this purpose. I prefer using a knotted wire wheel. A non-knotted wire wheel works as well, but I find it better for cleaning control joints after removing large weeds using the knotted one.
To prevent kickback, stand and drag the tool to the right as shown in the photo below.
If the angle grinder flange lock nut is stuck, use either a pipe wrench or a thin wrench to unlock it. For convenience, clamp the angle grinder to a stationary vise.
