These replacement brushes are sold as a set, one black and one red. They fit all the Beck Polishers and some Dremel machines. To help you determine the fit, the cones that hold the brushes are, 3 1/2 inches long. The circumference of the largest circle end of the cone is 9 1/2 inches. The circumference of the smallest circle end of the cone is 4". $39.00 |