Abstract: A threader power adapter includes a power shaft having a first longitudinal axis extending through proximal and distal ends and an adapter shaft having a second longitudinal axis coupled to the distal end of the power shaft. The adapter is configured for insertion into a threader handle socket along a first axis and insertion into a driver along a second axis such that application of a torque to the adapter about the second axis causes rotation of the threader assembly about a third axis. With a disclosed method, the threader power adapter is coupled with a threader assembly and the threader assembly is placed on the cylindrical member. A driver is coupled with the threader adapter and a torque is applied to the threader adapter with the driver to turn the threader assembly about a central axis to cut threads in the exterior surface of the cylindrical member.