Patent ID: 6965835

Claim:
A method for determining an angle of rotation of a fastener, comprising: measuring the angle of rotation, as applied to the fastener by a tool, with a device, which comprises a housing that includes a shaft and an angle rate sensor, the housing is configured to be positioned between the fastener and tool such that the shaft is directly connected to an end of the tool and directly to the fastener, the shaft is linked to an angle rate sensor that measures the speed and direction of the rotation applied; wherein the step of measuring the angle of rotation comprises: selecting a desired angle using an angle selector located on the housing, which further comprises a processor, a zero point indicator and an angle indicator; indicating a zero point to the processor; applying torque to the fastener with the tool to which the device is attached to rotate the fastener; measuring the rate and speed of the rotation with the angle rate sensor starting from the zero point; and calculating an angle of rotation using the processor.