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 is equipped with 4 dies, size: #6 (5/16'), #8 (13/32'), #10 (1/2'), #12 (5/8'). Manual Operation: The tool set is a comprehensive manual crimping tool. Though it has a light structure, it can give a large output force. The tightening screw can be easily screwed down with a wrench. Instant Setup: Our manual crimper can be installed according to the following steps: First, select the appropriate die to insert, close the jaw and insert the pin, tighten the screw to crimp. Finally, you can get the hose crimped. 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