Counteract stud cleaning brush inserts are built with vented cleaning heads allowing debris to disperse instead of clogging. The brushes are made with glass enforced nylon allowing it to cut straight through the rust and corrosion. Counteract insert brushes can quickly and effectively clean surface rust, corrosion, and debris from automotive wheel studs by cleaning the full length of the stud and creating proper clamping force with the wheel nut. Counteracts 22mm brush inserts work in tandem with the SBCT22 and fits into any battery-operated drill utilizing Forward On/Reverse Off motion for an easy clean. NOT FOR USE WITH IMPACT GUNS. The SBR22 includes (2) 22mm easy to replace brush inserts. The SBR22 brush is designed for use on commercial trucks, RVs, and buses. Available standard brush sizes; 18mm, 20mm, 22mm. Counteract began its journey in the quiet community of Georgetown, Ontario, Canada on the banks of the Credit River just 60 km west of Toronto. It was there we made the realization that the transportation industry needed an easier, more efficient, and environmentally friendly solution for balancing tires. By 1997, after putting decades of tire experience to work on this new idea, owner, inventor and chairman, Roger LeBlanc received a patent and developed a plan starting the groundwork for a strong family enterprise. One by one we delivered the perfect solution to the transportation industry's tire balancing woes with a revolutionary balancing product that would balance not only the tire and rim, but the entire wheel assembly. Since then, Counteract has grown into a global company producing many quality, unique products to service the transportation industry.