GMC Machinery Power Bending Roll 4' x 12 Gauge Model PBR 0412M, Taiwan made Standard Features SO 9001 certified Taiwan machines All (3) rolls are hardened rolls, up to 50-52 HRC 3-rollers are driven to perform high accuracy Adjustable cone attachment included 3/8”, ½” and 5/8” grooves on rollers One wheel one-side operated for bending roll One wheel one-site operated for pinch roll (E model is powered) Heavy duty casting frame Heavy duty all steel welded construction 1/3 of full length in middle of roller is straight, and two ends with crown to get perfect round performance. Quiet running operation Easy swing-out top roller Safety line all around the machine for emergency stop All rolls run forward and reverse Safety type forward/reverse foot pedal Power source 220V, (option: 440V, 3 phase) One year industrial warranty for parts