Abstract: A hydraulic device 10 includes a hydraulic pump 20, a tool 70, an oil passage 30, 32, 50, 52 for sending the pressure oil generated by the hydraulic pump 20 to the tool 70 and returning return oil from the tool 70 to the hydraulic pump 20, a handle 90 configured to be held by one hand of a worker, a switching part 88 disposed at the oil passage 30, 32, 50, 52 and configured to switch a path for at least one of the pressure oil and the return oil, and an operation part 80 for operating the switching part 88. The operation part 80 is disposed at a position that allows the operation part 80 to be operated with the hand of the worker holding the handle 90, or with a finger of the hand holding the handle 90.

Abstract: A hydraulic device 10 includes a hydraulic pump 20, a tool 70, an oil passage 30, 32, 50, 52 for sending the pressure oil generated by the hydraulic pump 20 to the tool 70 and returning return oil from the tool 70 to the hydraulic pump 20, a handle 90 configured to be held by one hand of a worker, a switching part 88 disposed at the oil passage 30, 32, 50, 52 and configured to switch a path for at least one of the pressure oil and the return oil, and an operation part 80 for operating the switching part 88. The operation part 80 is disposed at a position that allows the operation part 80 to be operated with the hand of the worker holding the handle 90, or with a finger of the hand holding the handle 90.