Lifelines
Unless you done it before you really need the right size die & punch for crimping / forming them together some come as part of a kit ,though you can if stuck carefully do it with a ball pein hammer
it can get a bit fiddly for the lifeline bolt/ coller as it wobbles about ,,
best i found is to get someone to hold a sledge hammer against the fabric so its solid then you can tap /crimp the 2 halves together making a better job .
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