3M Scotch-Brite Printed Circuit Bristle Brushes (Deburring or Scrubber Brushes) We are a PCB Manufacturer and have a few more than we need. I have about 12 of them and I will combine shipping if you purchase more than one. All are brand new and in boxes. I mostly have grits from 320 to 500. Please feel free to ask me if you have a question of availability. These retail for around 450 a piece.3M Scotch-Brite Printed Circuit Bristle Brushes 4 x 24 x 2-5/8in or 101 x 609 x 66.6mm