This is for 3" mini buffer and polisher. Suitable for item no. 58040 and 58049. All Master Palm pneumatic air tools are compatible with different industrial brand air tool accessories. Users can purchase accessories complying with the tool specification and usage capacity, for example, 3M, Clayton and many other brands. The male mandrel backing pad is for full angle sander and polishers. Suitable for 51040, 51080 models...