5336 Marshalltown 1/4in X 1/4in Square Notch Margin Trowel by Marshalltown Marshalltown 1/4″ X 1/4″ Square Notch Margin Trowel 1/4″x1/4″ square notch margin trowel 5″ x 2″. Forged high grade steel. Made in the USA . Posted in More Tile & Stone Tools, Tile & Stone Tools, Trowels tagged with Marshalltown