Are the motors of tools like the Dewalt 7491 jobsite table saw (US) and the Dewalt 7492 (Euro version) identical? Do these tools ship from the factory with a motor that can run on either 240V 50hz or 120V 60hz, and a plug for the destination market, so that all that would be needed to run the 7491 on a 240V circuit in the US would be a change of plug?