A tool for assembling and disassembling pipe segments , wherein said tool in the orientation intended during use comprising: an elongate shaft having an upper end and a lower end ; wherein said lower end of said shaft is being connected to a fork portion ; wherein said fork portion comprises a fork base ; wherein a first fork element extends in a downward direction from said fork base , at a first side thereof; said first fork element comprises an upper end and a lower end ; wherein a second fork element extends in a downward direction from said fork base , at a second side thereof; said second fork element comprises an upper end and a lower end ; wherein said fork portion comprising adjustment means for adjusting the mutual distance between said first fork element and said second fork element; characterized in that said adjustment means comprises: a slit ; a first toothed rack , a second toothed rack , and a sprocket ; wherein said fork base comprises said slit , at a lower portion thereof and extending in a longitudinal direction thereof; and wherein said first fork element being connected to said first toothed rack , said first toothed rack being configured to be able to slide in said slit ; wherein said second fork element being connected to said second toothed rack , said second toothed rack being configured to be able to slide in said slit ; wherein said shaft being pivotally connected to said fork base and being rigidly connected to said sprocket ; said sprocket being arranged in said slit ; wherein said sprocket is configured for engaging with said first toothed rack and said second toothed rack ; thereby allowing translating a rotation of said shaft , in a first or a second rotational direction, into an increase or a decrease of the mutual distance between said first fork element and said second fork element . an elongate shaft having an upper end and a lower end ; wherein said lower end of said shaft is being connected to a fork portion ; wherein said fork portion comprises a fork base ; wherein a first fork element extends in a downward direction from said fork base , at a first side thereof; said first fork element comprises an upper end and a lower end ; wherein a second fork element extends in a downward direction from said fork base , at a second side thereof; said second fork element comprises an upper end and a lower end ; wherein said fork portion comprising adjustment means for adjusting the mutual distance between said first fork element and said second fork element; characterized in that said adjustment means comprises: a slit ; a first toothed rack , a second toothed rack , and a sprocket ; a slit ; a first toothed rack , a second toothed rack , and a sprocket ; wherein said fork base comprises said slit , at a lower portion thereof and extending in a longitudinal direction thereof; and wherein said first fork element being connected to said first toothed rack , said first toothed rack being configured to be able to slide in said slit ; wherein said second fork element being connected to said second toothed rack , said second toothed rack being configured to be able to slide in said slit ; wherein said shaft being pivotally connected to said fork base and being rigidly connected to said sprocket ; said sprocket being arranged in said slit ; wherein said sprocket is configured for engaging with said first toothed rack and said second toothed rack ; thereby allowing translating a rotation of said shaft , in a first or a second rotational direction, into an increase or a decrease of the mutual distance between said first fork element and said second fork element . <EOS>