New Brass Wire Brush Jewelers Rust Dirt Cleaning Hand Tool. This is a new brass wire brush. Removes rust and dirt from metal surfaces. Fine brass bristles are mounted in a plastic case. Bristles can be screw fed as they wear down. Bristles measure approximately 1/2" x 3/16" (12.7 x 4.8 mm). The handle measures approximately 4 5/8" x 7/16". Due to manufacturer updates, photos may vary from the item or items received. Newer versions may be shipped before the photo shown is updated.