The Elektron B2 Ultra is an Elektron B2 cutter fitted with an ultrasonic tool and generator.
If the ultrasonic tool is removed from the bayonet tool holder (a 10 second process) the only visible difference between these two cutters is the power connection for the ultrasonics on the front plate of the Elektron B2 Ultra cutting head, the ultrasonic generator under the table and the vacuum table cutting surface.