... tolerance, hydraulic retransmission Max drilling diameter 63 (mm)Certification : ISO9001:2000 The radial drilling machine of Model Z3063X20 is ... ,close tolerance, hydraulic retransmission with a machine. Drilling diameter of 80mm,and is used to drill, expand, ream, groove, ... at home and abroad.Z3063X20 Radial Drilling Machine Specifications 1 Max. drilling diameter 63mm2 Distance from center line ...