Abstract: A surface finishing implement, such as a wire brush, cup brush, grinding wheel, or cut-off disk, configured for mounting to rotary power tools having a plurality of different types or sizes of mounting arrangements. One implement has a fixed power tool coupling arrangement configured for threadable mounting to a power tool arbor and a removable power tool coupling adapter configured for mounting to a quick-change coupler, preferably one of a quick-connect clamping and twist-lock coupling mechanism, of a power tool. Another implement is configured with a plurality of threaded arbor coupling arrangements configured to enable mounting of the implement to rotary power tools equipped with arbors having different diameters with one of the arbor coupling arrangements being a removable arbor coupling insert that threads into another one of the arbor coupling arrangements fixed to the implement. One implement includes the adapter, removable arbor coupling insert, and fixed arbor coupling arrangement.