Patent ID: 8534965

Claim:
A tool for use in drilling, tapping, and back spot facing at least one hole in a dynamoelectric machine, said tool comprising: a servo motor cutting device, wherein the servo motor cutting device is at least one of electrically powered, hydraulically powered and pneumatically powered; a gearbox; a drill unit skid, the drill unit skid adapted to engage a hook fit slot in a case of a dynamoelectric machine and for supporting the servo motor cutting device and the gearbox, the drill unit skid including hook fit slides, the hook fit slides configured to guide the drill unit skid along the hook fit slot and act as a stop in a radial direction; a vacuum port for connection to a vacuum system, the vacuum port for aiding in removal of cutting debris; wherein said servo motor cutting device and said gearbox rotate a cutting tool to create said at least one hole, and wherein a rotor of the dynamoelectric machine is left in place during drilling, tapping and back spot facing.