Abstract: A device for gauging and verifying the precision of surgical instruments is provided. The device includes a holder, at least one instrument, and a carousel having at least one cavity configured and dimensioned in the shape of the at least one instrument. The carousel is rotatably coupled to the holder. Markers or sensors for emitting or receiving signals are fitted to at least two of the holder, the carousel and the instrument, and allow determination of spatial information thereof. The spatial information is calibrated by inserting the at least one instrument in its respective cavity in the carousel and determining any change in dimensions from the instrument's first set of dimensions upon manufacture and its new set of dimensions following use.