4-in-1 Pipe Cleaning Tool for Plumbing & Deburring - Home & Industrial Use

Worked great on 1/2" copper pipe. Should work equally well on 3/4" pipe too. Brush that goes into the pipe for removing the inside burr works perfectly. The brushes that clean the outside also work great. Although because the entire brush is about 8 inches long, when twisting the brush on pipes close to joists, you cannot twist too far in one direction. Have to do a lot of short back and forth motions. Still works good though. Might want to have plumbing sandpaper around just in case to make sure the outside and inside is well cleaned. I think you can also use this brush for battery post cleaning if you do not have one of the dedicated $2.50 battery brushes. The 3/4" hole will clean the battery terminal post and the outside brush will clean inside the cable clamp.