The brushes were attached to the rear of standard bi-directional pigs and were used to remove mineral scales and wax, helping to control internal corrosion, reduce flow restrictions and prepare the lines for intelligent pigging.

Galaxy pencil end brushes are used on magnetic flux leakage pipeline inspection applications.

The brush size, bristle density, trim length and mounting plate geometry are customised to specific needs and tool characteristics. Virtually any brush pattern and brush angle could be achieved depending on the application.