6pcs For Power Drill Cylinder Bore Brush Set With Hex Shank Stainless Steel HOT Description: [Package includes] You will get 6 hole brushes of different sizes (8/10/12/15/17/19mm) with 1/4-inch hexagonal handle. There are plenty of them, and various sizes can meet your different needs. [Durable material] These hole brushes are made of stainless steel, durable, rust-proof, can thoroughly clean rust and stains, and are durable and wear-resistant.  [Applicable to narrow places] The small-size design facilitates access to narrow holes and narrow areas, and is suitable for cleaning ports, pipelines, bearings, cylinders or other narrow requirements.  [Widely used] You can also use it directly or with any electric drill or mold grinder. It can provide you with effective cleaning. When using, please do not exceed 600rpm, and do not turn counterclockwise, just push and pull.  [All kinds of occasions] These hole brushes can be used in your car, garage, office and kitchen, and are very suitable for cleaning, polishing, painting or rust removal in cars, machining, etc.  Specifications:  Material: stainless steel Color: silver  Length: about 10 cm /4 inches  Handle diameter: 1/4 inch  Diameter of brush: about 8mm/0.31in, 10mm/0.39in, 12mm/0.47in, 15mm/0.59in, 17mm/0.67in, 19mm/0.75in.  Quantity: 6/set (8/10/12/15/17/19mm)  Package includes:  6 x hole brush