An apparatus for holding a specimen to be viewed in a focused beam microscope, which can be an electron microscope or a focused ion beam microscope. The apparatus has a base and a specimen carriage with specimen mounting surface in a first plane and an ion beam screen or knife blade. The relative position between the ion beam screen and the specimen carriage are remotely adjustable while the apparatus is mounted in the focused beam microscope. In a further embodiment, the apparatus is transferable between an ion beam milling device and the focused beam microscope while the milling device and the microscope share a common vacuum.