Hello, If anyone can give me some advice - would appreciate it... Thinking of buying an olive removing tool. As far as I can see there is a cheaper model that will remove both 15/22mm olives (the tool screws on to the existing compression locking nut and you pull the olive off) or there is a more expensive tool that splits the olive (but 2 seperate tools required to do both 15 & 22mm). Will the cheaper one suffice or are they unreliable..???