These pneumatic push-type tools combine the functions of tensioning, sealing and cutting. They are used on round or irregular shaped objects.These tools are standards in the steel industry. For their size and weight, they are commonly counterweighted and hard to carry unassisted. This tool is a single reverse notch sealer and is intended for use on regular duty work loads.These are popular because pressing one button tensions seals and cuts in a matter of seconds. As the tool is heavier, a spring balancer is recommended for maximum utlity