Labor saving hydraulic design: TH profile (crimping profile, jaw sizes are 16mm, 20mm, 26mm, 32mm, suitable for composite pipe types such as aluminum-plastic tubes and copper tubes, unlike traditional hand tools that rely on levers and manual force, our copper tube crimping tool ...Labor saving hydraulic design: TH profile (crimping profile, jaw sizes are 16mm, 20mm, 26mm, 32mm, suitable for composite pipe types such as aluminum-plastic tubes and copper tubes, unlike traditional hand tools that rely on levers and manual force, our copper tube crimping tool Hydraulic has a cylinder Built-in hydraulic that significantly reduces the required force. This allows one person to easily make tight connections and improve work efficiency. Reliable: No soldering required.