Inline’s Pit Cleaning™ Pig is one of the most aggressive mandrel body cleaning pigs on the market. It is equipped with four discs, heavy wire pencil brushes and HZ spring brushes for superior pit cleaning. This pig can be custom built to meet specific job requirements. Multiple pencil brushes on this pig are used for cleaning black powder, wax, mill scale and rust from the inside of pipe and can get into the smallest of pits. This pig will ensure there is maximum cleaning coverage inside the pipe.