The Marshalltown 6517 Black Horsehair is a 6517 13.5-inch beaver-tail masonry brush with black horsehair fibers — concrete shop brush for masonry and mortar work. Manufactured at Marshalltown’s Iowa plant — the same plant the company has used since 1890 — and built for daily commercial use by concrete finishers, bricklayers, and stucco crews.
Right tool for masonry contractors, concrete finishers, and serious DIY masons. Marshalltown’s brushes, jointers, and slickers extend the company’s flagship trowel line into the full concrete-finishing toolkit.
Marshalltown Company has been making concrete and masonry tools in Marshalltown, Iowa since 1890. The brushes, jointers, and slickers in this lineup round out Marshalltown’s broader concrete-finishing toolkit — every tool is American-made at the Iowa plant and built for daily commercial use by concrete finishers and bricklayers.
