4 Types 12 Pieces This value pack includes 4 different types of wire brushes for drills. 12 wire brushes in 1 pack, great value for money.Use in all types of drills and grinders to meet all your needs. High Quality This copper wire brush kit is made of High quality brass and steel materials, eco-friendly, durable and long lasting. It is ideal for rust removal, paint removal, material removal, deburring sharp edges, blending edges, etc. Superb Polishing Effect Due to the good uniformity of the brush shape and the strong heat dissipation of the wire, the polishing effect is great. Drill Polishing Brush Very easy to mount and dismount on the drill. Widely Used This drill bit set can be used on many different objects, such as flat, curved or uneven surfaces. They are best for metal polishing, wood polishing, metal rust removal, or kitchen utensil cleaning. Functionality The product is great for all types detail processing using hard and delicate materials. The brush is perfect for corners and crevices and for cleaning all the little things Suitable for your polishing needs, can be used for metallic and non-metallic materials. Technical sheet: Material: Steel wire Rod diameter: 6 mm / 1/4 inch Maximum speed: 4500 rpm To remove rust, paint, scale and encrusted deposits Wire brushes are suitable for cordless screwdrivers and light drills Machine: drills - for stripping and cleaning - for preparing soldering and welding work - for sheet metals Application: welding, rust removal, sanding and polishing the surface of metals, non-ferrous metals, steel, wood and hollow materials