Two-piece assembly, assembly kit and method of achieving an assembly

1. A tool for cutting, shearing, clamping or gripping, having a first piece, a hollow second piece, and two arms connected to one another by means of an articulation, wherein

the first piece has an upper part and a lower part which are connected by a hinge-forming part and form between them a space;

a part of the hollow second piece is accommodated in said space;

the hollow second piece includes a cavity and a bushing that is provided in at least part of the cavity, the bushing being provided at a level of a part of the hollow second piece that is accommodated in the first piece, the bushing extending beyond an end portion of the first piece in a direction toward the hollow second piece; and

the first piece being formed of a material having a high mechanical resistance and the hollow second piece being formed of a material having a low radial mechanical resistance,

wherein the tool further comprises:

clamping means which bring together said upper and lower parts of the first piece.

2. The tool according to claim 1 , wherein the first piece is made up of a metal or a metal alloy.

3. The tool according to claim 1 , wherein the hollow second piece is made up of a composite material.

4. The tool according to claim 2 , wherein the hollow second piece is made up of a composite material.

5. The tool according to claim 3 , wherein the composite material is constituted by a polymeric matrix reinforced by carbon fibers.

6. The tool according to claim 1 , each arm having:

a cutting part,

a transmission part, and

a manipulation part,

each arm further comprising a connecting part between the transmission part and the manipulation part;

the connecting part constituting said first piece, and the manipulation part constituting said hollow second piece.

7. The tool according to claim 6 , in particular pruning shears for two hands, wherein the connecting part is of aluminum or an aluminum alloy.