* Special hydraulic system for quick feeding, easy to operate * Different sizes of pinch rollers & combinations * No need to change the pinch rollers when you need to groove different size pipes * Just rotate the pinch roll Turret to acheive the replacement size. * Lifting the mechanism with 2 wheel to make it mobile * Comes with foot switch for hands free opperation * Supplied with adjustable height roller stand with 1/2" - 12" capacity * Machine is Rothenberger style