Features: brand new and high quality The hole brush can easily reach narrow holes and narrow areas, and is designed to be used in right-angle grinders; industrial wire brushes are suitable for cleaning steel parts, machinery, unfinished metal parts, paint stains, corrosion without damage Surface or fine lines. 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 wire 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. You just need paste one of the brushes on the included handle to bore out rust or dirt, and it can also use on any power drill or die grinder, which can provide you with effective cleaning. Bore cleaning brushes are made of stainless steel and brass copper, strong and durable, can clean rust and detail completely; twisted wire is for increased cleaning action. Specifications: Material:Stainless Steel, Copper Type:Stainless Steel/Copper Length:11cm/4.33inches Package Includes: 6 Pcs Bore Cleaning Brush / Set note: Please allow 0-3mm errors due to manual measurement, make sure that you do not mind before you order.