Mini Brush with Brass BristlesMini Brush Gets into the Tightest Corners! Designed to easily access tight corners and clean small parts Ideal for removing rust and dirt from hard to reach areas Effective at scratching metal and de glossing plastic, improving solder and glue adhesion Bristles can be extended and retracted like a mechanical pencil, making it easy to control the amount of pressure applied Compact size makes it a convenient tool to have for a variety of tasks