Three drill brush combo kit, fits all cordless drills and impact drivers. Durable high quality nylon bristles are great for scrubbing and cleaning boat hulls, sails, carpet, and seats. Works great to save time and effort when cleaning boats and boat trailers. Each brush features a corrosion resistant quarter inch quick change shaft which will allow it to fit into your impact driver or cordless drill. This is the ultimate Drill brush kit for marine applications, you will be able to clean boat hulls , carpets, and non skid surfaces using the drill brush flat brushes. The 2 inch diameter brush is great for cleaning hard to reach areas such as cup holders. You will no longer have to spend hours hand scrubbing when you have the power of your drill and our drill brushes to get the job done faster and better. Drill NOT included.