See the link for a significant electric-powered source of reciprocating motion. The current invention/Idea is an adapter-gadget that is inserted like a saw-blade into that device, but also has a method for attaching a scrub-brush. Since there are a wide variety of scrub- brushes that are normally used in a back-and-forth motion, this invention needs to exist as an equally wide variety of attachment/adapters.-- Vernon, Jul 13 2015 Electric saw https://encrypted-t...bbk125cgXDKI_X4ETGAAs mentioned in the main text. [Vernon, Jul 13 2015] Advertising slogan: A Sawzall (or other brand-name) isn't just for men any more!-- Vernon, Jul 13 2015 random, halfbakery