New F-clamp with 5 new patents. Innovate piston sistem keeps all the thread covered, new handle dismountable that replaces the standard one allowing the tool’s use from any position, greasing hole for the srewing mechanism, the fixed jaw is grooved to achieve optimum grip of curved pieces, new desing of both jaws keeps all edges and protrusions free while the piece is gripped and the moving jaw is kept firm in the desired position using a spring mechanism.