Comprehensive Cleaning Kit: This set includes 3 pcs 0.79-inch pen brushes, 3 pcs 2-inch wheel brushes, and 3 pcs 2-inch cup brushes, designed to tackle a variety of surfaces from large areas to tight corners, ensuring thorough cleaning and grinding. Built to Last: Constructed from premium carbon steel wire, each brush in this set is tightly bound to prevent bristle and bending, ensuring durability and for sustained heavy-duty use. Stable and Secure Operation: Equipped with a 1/4-inch hex shank, these brushes maintain a firm grip in your drill, preventing slippage and ensuring consistent, reliable performance during all cleaning tasks. High Compatibility and Performance: Suitable for most electric drills and pneumatic tools, these brushes can operate at speeds up to 4500 RPM, making them ideal for removing rust, stripping paint, and smoothing out weld spatter and oxidation. Efficient Cleaning Power: Quickly and effectively remove rust, paint, and other residues from metal and wood surfaces. Ideal for preparing welding edges and restoring old surfaces, these brushes simplify your maintenance tasks. Color: Silver Material: Metal Package Contents: 10 Pcs Drill Wire Brushes Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.