Abstract: A working machine includes a housing, a motor, an operating part, and an on-locking unit. The motor is accommodated in the housing. The operating part is a part of the housing. The operating part is movable between an on position and an off position. The motor is driven when the operating part is in the on position, and is stopped when the operating part is in the off position. The on-locking element is configured to maintain the operating part in the on position. At least a portion of the on-locking element is accommodated inside of the housing so as not to be operable when the operating part is in the off position. The portion of the on-locking unit is positioned outside of the housing such that the on-locking unit becomes operable when the operating part is in the on position.

Abstract: The work machine includes: a gear housing; a spindle protruding in a first direction from the gear housing; a bearing held by the gear housing and including an inner race and an outer race, the bearing rotatably supporting the spindle; a tip tool attachment portion to which a tip tool is attachable, the tip tool attachment portion being provided at the spindle; a sealing member positioned further in the first direction than the bearing; and a restricting member for restricting the sealing member from moving in the first direction. At least a part of the sealing member is overlapped with the inner race in an axial direction of the spindle. The restricting member is held either by the spindle or by the gear housing.

Abstract: A working machine includes a housing, a motor, an operating part, and an on-locking unit. The motor is accommodated in the housing. The operating part is a part of the housing. The operating part is movable between an on position and an off position. The motor is driven when the operating part is in the on position, and is stopped when the operating part is in the off position. The on-locking element is configured to maintain the operating part in the on position. At least a portion of the on-locking element is accommodated inside of the housing so as not to be operable when the operating part is in the off position. The portion of the on-locking unit is positioned outside of the housing such that the on-locking unit becomes operable when the operating part is in the on position.