... (in)444.5(17 1/2)520(20 1/2)698.5(27 1/2)952.5(37 1/2)952.5(37 1 ... /2)Gears one gear, stepless speed regulatingDrive ... or 5.57.5910.5Clearance height under rotary beam, m 2.6 or 3.33.8 or 4.367.69Mud pumpModel ... ,40,50,70,90DBS,drill rig,factory price,09new style,tech from USA