• These brushes are the elite in cleaning those hard to reach places.
• They give you the ability to scrub places where carbon, powder, and copper residue hibernate.
• These brushes are available in a variety of different tolerances.
• The softest is the nylon bristled brush, followed by a slightly more aggressive blue nylon bristled brush. The most aggressive of Otis All Purpose Receiver Brushes are the bronze stainless steel bristled brushes.