Bursten Internal Ring brush with the metal channel and black filament specially made to clean and polish are specially made to clean and polish the outside of parts or to create a vacuum or seal over moving parts. These brushes can be made with natural and synthetic fibers and metal wires. The brush is manufactured using a metal strip brushes and can be split and expanded to slide over a shaft, can be segmented into individual rings or can be made as a continuous section to any custom length. These brushes are manufactured using a pipe or CNC machined tube and can be filled with a welded internal coil brush, infused with pencil brushes or a hand-drawn brush. Bursten has the capability and the technical knowledge to design and manufacture custom internal ring brushes for you. We are industrial brush suppliers, please contact Bursten today and let us help you select the correct brush.