The hydraulic clamp is a kind of most portable charging type hydraulic tool design, single hand operation, used in distribution operation terminal crimping, lightweight, high durability and maintenance rate for all hydraulic tools minimum set pressure automatic pressure relief arrived, rotary head is suitable for different work places, mechanical hydraulic head to ensure that the quality of crimping. The hydraulic clamp can shake the minimum cut metal, especially suitable for use in rescue activities. For example, a reinforced through an injured body, the use of other electric cutting machine not only vibration, there will be heat generated, will cause two damage to the injured will produce pain, hydraulic shear is using hydraulic pressure as power, between reinforced after a hard cut, so that no shaking or vibration, no heat.