3-1/2" Brand New Huth-Ben Pearson Benchtop Expander with Cart , Mdl. 1691, Hands Free Operation with Foot Pedal Activation, 25,000 lbs of Expanding Power, Huth's Accu-Sizer System, Built In Tool Tray, Solid Piece Arbors & Segment Sets, 2 HP Available in 110V, 30 Amp or 220V, 20 Amp, Rugged Cart for Maximum Portability, #SM1691