Complete Set: 9 sizes of stainless steel bore brushes, two per size: 5/16"(8mm), 3/8"(10mm), 1/2"(13mm), 5/8"(16mm), 11/16"(18mm), 3/4"(19mm), 7/8"(22mm), 1"(25mm), 1-1/8"(28mm), a 1/4" hex shank handle, 10 mm extension bar, and safety goggles
HBuild Quality: Made with high‑grade 304 stainless steel bristles and a galvanized handle. Rust‑resistant and built to last for heavy duty cleaning tasks
Universal Hex Shank: The 1/4" universal hex design fits most drills, drivers, and grinders. Quickly switch between tools for efficient and stable cleaning without slipping or loosening
Deep & Versatile Cleaning: Ergonomic handle plus 10 mm extension rod turns it into a long wire brush for hand drill, ideal for engines, pipes, and industrial equipment—removing rust, carbon, and oxidation from tight or deep areas
Safe Use Guidelines: Always wear goggles. Operate at about 600 RPM, use push‑pull motions, and avoid counter‑clockwise rotation during drilling to ensure safe, smooth, and effective cleaning