Description: You will get 6 pieces bore brushes with handle, enough quantity and various sizes can meet your different needs, and suitable replacement for traditional hand wire brushes. The cleaning brush is designed for easy access into narrow holes and confined areas, can be applied for ports, tubes, bearings, cylinders or other narrow clean up requirements. There are 6 different sizes of brushes, including 8 mm, 10 mm, 12 mm, 15 mm, 17 mm and 19 mm indiameter. Each brush has 4 inch in length and 1/4 inch hex shank to be mounted on any power drill or die (not included). Quality material, fine workmanship. Quick change of hexagonal handle is suitable for power drill, impact drill and stamping machine. Suitable for automotive, manufacturing, machining and machining applications, for cleaning, polishing and removing paint/rust. Specifications: Material: Stainless steel wire / copper wire / nylon wire(Can choose) Diameter: 8mm, 10mm, 12mm, 15mm, 17mm, 19mm Size: Diameter: 8mm, 10mm, 12mm, 15mm, 17mm, 19mm Note: 1.Please allow slightly error due to manual measurement. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3.Wish you a wonderful on-line shopping! Package included: 6X Brush