A surgical reamer driver device provides a fully closed tube which prevents the invasion of debris and minimizes abrasion of soft tissue during use. The reamer device includes a minimum number of component assemblies, so as to permit easy replacement and minimize wear. The surgical reamer driver (1) has a housing assembly (10) in a stand-alone, assembled unit, a transmission drive train (21, 21') in a stand-alone, assembled unit enclosed in the housing assembly (10), and having at least one double universal joint (22, 22') and a surgical tool connector (4) at the distal end (3) thereof, a motor shaft coupling (11, 11') in a stand-alone, assembled unit at the proximal end thereof, and a handle assembly (9) in a stand-alone, assembled unit at the proximal end thereof,these four basic components forming a driver (1) which in a fully assembled state effectively prevents debris from access in the inner workings of the driver (1). A method (600) for disassembling the reamer driver (1) includes the steps of: a. (602) actuating a sliding release sleeve to unlock the handle assembly from the housing assembly, thereby permitting the de-encapsulation of the drive train within the housing assembly; b. (604) sliding the handle assembly off of the housing thereby effectively de-encapsulating the drive train; c. (606) pulling the motor shaft coupling out of the housing thereby freeing the drive train from axial constraint on one end; d. (610) unsnapping the drive train on the one end and lifting the one end out of the housing assembly thereby permitting removal of the drive train; and e. (612) pulling the drive train out of the housing assembly, thus removing the drive train from the housing assembly.