... high efficiency ,close tolerance, hydraulic retransmission 1.Max drilling diameter 40(mm)2.Distance from center line of main spindle ... ,close tolerance, hydraulic retransmission with a machine. Drilling diameter of 40 mm,and is used to drill, expand, ream, ... and abroad.ZQ3040Bx13Radial Drilling Machine Specifications 1 Max. drilling diameter 40mm2 Distance from center line of main spindle to ...