Package contains: you will 8 pieces of stainless steel cleaning brushes with 8 different sizes, all of have 1/4 inch hex , which can be applied on ports, tubes, bearings and other common wire brush applications, enough for your needQuality materials: these bore brushes are made of stainless steel and brass copper, strong and durable, which can clean rust and detail completely; wire is for increased cleaning action, durable and abrasiveSize details: the drill wire brush is 1/4 inch hex fits for power drills, impact drivers, die grinders, the overall length is about 4-3/4 inch, and 8 kinds of width includes 8, 9, 10, 11, 13, 15, 17 and 19 mm, so you can the suitable size to use according to your needsMultiple functions: this bore cleaning brush can access into narrow holes and confined areas , designed for use on right angle grinders, also suitable for cleaning steel parts, machinery, the unfinished metal parts, paint stains, corrosion without damaging surfaces or fine featuresSuitable occasions: these wire bore brushes can be applied in your car, garage, office and kitchen, for cleaning, polishing, painting, or rust removal in automotive, , machining and smiting applications and moreDurable to use:The bore brush set comes with quality wires, which is durable and lasts for a long time without losing out on functionality, providing more .Wide usage:These bore cleaning brushes are designed with the appropriate length as as the diameter that provides easy access to narrow holes, so they have a wide array of applications.Types:Colour:silverMaterial:Stainless steelSize:Length: about 11.4cmWidth: 8/9/10/11/13/15/17/19mmPackage Contents:1 set x wire brushWarm notes:Pointed partsincluded, keep from .Only the above package content, other produc 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.