Bushing tools are ideal for leveling concrete surfaces and removing excess concrete during finishing work. Additional, bushing tools can be used to roughen a smooth concrete to prepare the surface for additional concrete or a coating.Bushing tools are ideal for leveling concrete surfaces and removing excess concrete during finishing work. Additional, bushing tools can be used to roughen a smooth concrete to prepare the surface for additional concrete or a coating. Bushings are used for control arms, stabilizer bars (also called sway bars), ball joints, tie rods, shock absorber and strut mounts, and other suspension and steering parts, as well as in engine and transmission mounts