Hammond 1593 Series Instrument Enclosures - Hammond 1593KBK, Buy Hammond instrument enclosure black 66 x 66 x 28 (1593KBK) - a hand-held black instrument enclosure from the Hammond 1593 series, 66mm in length, 66mm wide and 28mm high. Ergonomically designed for a comfortable fit into the user\'s hand, this enclosure has a recessed top for membrane display. The unit is secured with self-tapping screws, and is ideally suited for mounting printed circuit boards. Hammond 1593KBK Instrument Enclosure Black 66 x 66 x 28