... perfect inspecting method scientific management system 40 years experience The radial drilling machine of Model Z30100×31 is one of the large ... efficiency,close tolerance,hydraulic pretransmission with a machine. Drilling diameters of 100mm,and is used to drill, expand, ream, groove, tap the middle ... of the machine20000kg Overall size (L*W*H)4560x1630x4525(mm) Radial Drilling Machine z30100*31