Exmark expands Radius zero-turn mower line The new machine features a twin-blade 48-inch UltraCut Series 3 cutting deck. BEATRICE, Neb. –– Exmark has expanded its 2021 zero-turn riding mower offering with a new Radius E-Series machine featuring a twin-blade 48-inch UltraCut Series 3 cutting deck. Exmark Product Manager, Mike Mayfield, said the new mid-size Radius E-Series model provides increased cut quality, improved mulching and more uniform clipping discharge. “Radius E-Series mowers deliver professional quality results paired with unmatched value,” Mayfield said. “The new 48-inch UltraCut Series 3 twin-blade cutting deck uses longer blades than an equivalent three-blade cutting deck, for increased cutting system performance, particularly when mulching or bagging.”