Slip Joint Pliers Non -Sparking Secure Tools's easily-movable fulcrums is a Non-Sparking Slip Joint Plier. The pivot point is another name for this fulcrum. The moveable fulcrum in this instance makes it simple to expand the size range of the jaws. The majority of a Non-Sparking Slip joint pliers employ a style of mechanism in which the pivot point slides in one of its locations. When the pliers are fully opened, this slipping happens.