should be noted that when the disposable loading unit is made rotate an audible click sound is produced indicating that the disposable loading unit 40 is fastened correctly to the housing 10 when the disposable loading unit 40 is fastened to the casing 10 the tool 45 can be used and positioned to dispense a plurality of clips for this purpose the movable handle 13 is moved in the direction shown by the arrow u201c c u201d in fig1 against the stress of the torsion spring to make the first actuation shaft 16 a move forward linearly in the distal direction and to move the second actuation shaft 16 b forward linearly in the proximal direction by means of the transmission element 17 the movement of the actuation shafts 16 a 16 b induces the movement of the respective actuation sleds 20 a 20 b thereof the disposable loading unit 40 being fastened to the handle 30 the movement of the actuation sled 20 b induces therewith the movement in the proximal direction of the first pair of hooks 450 which is rigidly connected to a first plate not shown in the figures the first plate thus moves longitudinally in the proximal direction until it engages with a clip u201c n u2212 1 u201d stored in the body 43 of the movable loading unit.