Re: What is this special Mercury Tool for M60-557 for KF3 or KF5’s Home › Forum › Ask A Member › What is this special Mercury Tool for M60-557 for KF3 or KF5’s › Re: What is this special Mercury Tool for M60-557 for KF3 or KF5’s jw-in-dixieReplies: 371Topics: 23 April 4, 2018 at 3:02 pm #73443 Correct.