Wide Application: The crimping tool has a base that can be mounted to a bench for easy use, or the base can be held by any vise. It is compatible with the project car's AC lines, bead locking fitting, and A/C hose. Lightweight & Compact: One-person operation saves your time and energy. Besides, the crimping tool kit is stored in a plastic toolbox, reducing the possibility of missing parts. It is compact and easy to carry. Instant Setup: Our hydraulic crimper can be installed according to the following steps: First, select the correct die to insert, insert the pin, then turn the tool's body clockwise until dies are snug against hose fitting. Turn the valve to work position, pump the handle until stop. Finally, you can get the hose crimped. Integral Hydraulic: This hand-held integral hydraulic press A/C hose crimper is made for easy use. The hydraulic tool is designed with exquisite details, such as a pressure relief valve and no-leakage oil cylinder. Durable Crimping Tool: Our crimper is made of aluminum alloy material, ensuring its durability. Stamper hardness can reach up to 53 HRC to bear a large force. And it equipped with 7 dies, size: (5/16", 13/32", 1/2", 5/8") and reduced barrier #8, #10, #12(13/32", 1/2", 5/8").