16-Piece Bore Brush Set - Brass Drill Wire Bore Cleaning Brushes 【Full-Size Dual-Material Kit】 Includes 8 precision sizes (8/10/12/15/17/19/22/25mm) with brass brushes (2 of each per size, 16 total). Each brush features a 1/4" hex shank for instant compatibility with drills, grinders, and impact drivers. 【Deep-Cleaning Design】 Twisted wire tips flex to access narrow holes, welds, and tight machinery gaps. Engineered for rust removal, paint stripping, and corrosion cleaning without scratching surfaces – ideal for automotive parts, metal fabrication, and tool restoration. 【Industrial-Grade Durability】 Brass wires safely clean softer metals (e.g., copper, aluminum). Reinforced twisted stems withstand heavy-duty use in workshops or garages. 【Optimized Dimensions】 4" total length balances reach and control for angled jobs. Match each task with the exact size (8-25mm) and material – brass for delicate polishing. 【Multi-Use Workshop Essential】 Solve automotive, metalworking, and DIY challenges: clean engine parts, prep welding surfaces, restore tools, or polish fixtures. Store compactly in toolboxes, service vans, or workshops. Drill brush set for rust removal, small hole cleaning brushes