? ATBTM Wheel Brushes ? ATB Uni-Lok Disc Brush Max Density ? Silicone carbide filled nylon filaments eliminate the need for cleaning finished parts. Excellent for use on both metallic and non-metallic surfaces. ? Osborn's maximum density design delivers maximum aggression for the most demanding applications. These tools are capable of processing large burrs and generating significant edge radii on stainless steel and hardened alloys without altering the part's dimension. Our maximum density allows for minimal cycle time and longer brush life.