Stainless Steel Bore Wire Brushes, Warm note:Please do not exceed 600 rpm and do not rotate counterclockwise. Once you apply too much pressure, they will lose balance and break; Pay attention to the correct use of these brushes to extend their service life. Bore cleaning brushes are made of stainless steel, strong and durable, Compared to traditional hand brushes, they can be cleaned in narrower spaces. Our abrasive bore brush set is widely used for dusting, rusting, decaying and polishing tubes, ports and bearings, allowing you to clean your kitchen, car or machinery thoroughly. Specification: Color: Silver Materials: Stainless Steel Brush Diameter: 8mm, 10mm, 12mm, 15mm, 17mm, 19mm Number of Items: 6 Length:4 inch Hex Shank Diameter: 1/4 inch Package Includes: 1Pcs x 8mm Bore Brush 1Pcs x 10mm Bore Brush 1Pcs x 12mm Bore Brush 1Pcs x 15mm Bore Brush 1Pcs x 17mm Bore Brush 1Pcs x 19mm Bore Brush 1Pcs x Transparent plastic box High-quality material: Our inner hole cleaning brush is made of stainless steel, which is durable, wear-resistant, efficient and can be used for a long time. Wire bristles in the form of twisted wires, can completely remove rust and details Size details: There are 6 different sizes of stainless steel inner hole brushes, including diameters of 8mm, 10mm, 12mm, 15mm, 17mm and 19mm, a variety of sizes will meet your various cleaning needs Hex shank design:Each brush has a 1/4 "hexagonal handle that can be installed on power drill or die grinder, making it easier to enter narrow holes and gaps for cleaning Wide application: These hole brushes have a wide range of applications, can be used with tools such as power drills, impact drivers, die grinders, etc., will provide you with effective cleaning, very suitable for cleaning car interiors, pipes, removing burrs, paint, stains, rust wait Packaging includes:You will receive 6 stainless steel inner hole brushes packaged in a transparent plastic box for easy transportation, safe storage, and quick organization. Stainless steel bristles and wire brushes can bring great convenience to your cleaning work.