From a spent metal brush brush for angle grinders, you can make a universal nozzle for grinding workpieces made of wood and metal. Such a nozzle can be placed on an electric drill or grinder. If necessary, even a drilling machine can be installed.
First of all, you need to take the spent cup brush and grind the “remaining roots” on it with the help of an angle grinder. After that, three through holes must be drilled in the cup, which will be used to connect to the wooden drum.
Please note that you need to drill holes at a slight angle. Next, we cut out a drum of suitable diameter from a round of wood or plywood. We fasten the workpiece to the cup brush on the screws. First you will need to drill holes in the drum.
The main stages of work
After screwing the drum to the brush "cup", you need to process it with sandpaper. Actually, the nozzle itself is ready. Now you only need to make an abrasive coating so that you can grind the workpieces. You can install such a nozzle both on a angle grinder and a drill by installing an adapter.
Cut off a piece of sandpaper that is suitable in size (the ends should be cut at an angle), and then glue it to the drum. For bonding, you can use ordinary PVA carpentry glue. At the time of gluing, we fix the sandpaper with electrical tape.
Details on how to make a universal grinding nozzle out of a cup brush for angle grinders with your own hands can be found in the video on the website.