Abstract: A tape measure attachment device marks and cuts an object at a desired measurement. The device includes a first attachment member having a lower wall and a perimeter wall coupled to and extending upwardly from the lower wall. An upper perimeter edge of the first attachment member defines an access opening into the first attachment member. The first attachment member is configured for attachment to a flanged end of a measuring tape. A cartridge is positionable within an interior of the first attachment member. The cartridge includes a pointed bottom end being extendable through the lower wall. The pointed bottom end is a cutting element configured to cut into an object positioned below the cutting element.