Woden PQ703A Air Hydraulic Pump for hydraulic wrench Features input air compress 6~8 bar. Compact automatic three stage flow, can start in high pressure. Applicable on both one or two wrenches simultaneously. Aluminum oil tank with oil gauge and motor. Total weight only 20.5 kg. Have Ï?00 high pressure gauge. Infinitely variable pressure adjustment between 40~700 bar.