Please note, this item ships from an international seller. Expected delivery is 10-15 days. Specification: Name: Electric grinding brush Color: as shown Material: steel wire Size: Shank diameter: 3 mm Brush diameter: pen-type: 5 mm T-type: 20 mm Bowl-type: 13 mm Application: Compatible with many rotating tools, suitable for cleaning metal surfaces, polishing, correction, rust removal, grinding Package includes 42* Brush Notice: Please allow slight dimension difference due to manual measurement. Please consider the actual sizes in the listing as the pictures are generally enlarged to show detail. Due to different producing batches, product details might be a little different. If you minding the difference, please buy it carefully. Due to the light and screen difference, the item's color may be slightly different from the pictures. Thanks for your understanding. Compatible with many rotating tools, such as Dremel, suitable for cleaning, polishing, correction, rust removal, grinding metal surfaces Ideal for for home improvement, hobby, craft and whenever you need to polish, grind, drill, cut, engrave, and more, meeting your various DIY requirements The wire wheel brushes are made of stainless steel or brass, great tools for detailed works These are great for polishing jewelry or other metal working uses Ideal for removing rust,corrosions from any metal surface, suitable for most ferrous and non-ferrous metals, castings, welded joint