Chris52x

Hi everyone and thank you for letting me join. I have a leak on a gearbox oil pioe and cant work out how to remove it. It looks like a push lock connectìon and I have read that there is a tool you can buy. Can anyone let me know what it is called and where would be the best place to buy one. It is a tiny leak on a bend so can this pipe be repaired using a flexible hose or would changing to a new pipe be better? Thanks everyone for your help.