Ergonomic Design: The handle is wavy silicone modeling, linkage pressurization, long time use is not easy to fatigue Stable: Thickened steel products make the crimping process more tight. With safety valve, the pressure will be released automatically when it reaches the limit value Wide Range: The kit contains different models of dies, choose as needed. The head can be rotated 180 to meet different angles of work. Can be used in tight spaces Portable: Equipped with a toolbox for easy storage and carrying Versatile Style: Perfect for hand tool,hydraulic repairs,industries,electrotechnical.