... which is characterized by the high efficiency ,close tolerance, hydraulic retransmission Model : Z3080X25Max drilling diameter 80(mm)Certification : ISO9001:2000 ... efficiency ,close tolerance, hydraulic retransmission with a machine. Drilling diameter of 80mm,and is used to drill, expand, ream, groove ... 5KW18 Power of arm elevating motor 3KW19 Power of hydraulic hold-down motor 0.75KW20 power of the ...