Application: These twist brushes are suitable for removing rust, corrosion, paint, deburring and surface treatment. Ideal for cleaning molds, structural steel and sheet metal. Sturdy Structure: Made of selected fine carbon steel wire, hand-wound and crimped wire, the steel wire is evenly distributed, not easy to break, the whole is not black, sharp, saving time and effort, and is very efficient. What You Get: The 3-piece set includes 1 knotted wire brush, 1 knotted steel wire brush, 1 knotted end brush. 3 different shapes and sizes combinations to meet your different needs. Introduction: Note: 1. For safety, remember to wear goggles or glasses to prevent the brush from falling debris while rotating. 2. You can test on a small area first, then apply it to a large area. Features: Compatible with any 1/4" diameter electric or pneumatic drill. The design of the wire brush and end brush in the kit allows easy access to narrow holes and tight areas. Innovative metal structure with spiral knot for precise deburring, rust removal, splash and paint, surface treatment. Package includes: 1 x Knotted Wire Brush. 1 x Knotted Steel Wire Brush. 1 x Knotted End Brush.