The problem when I take my cars to service is that they often break. one of the holes for the bolts of the pallet. So I bought these spiral coils to solve this problem. I've never used spiral coils before but was surprised at how easy it is. This kit contains a special tap, installation tool and 10 or 12 (I don't remember right away) spools. You will need a 21/64 drill bit, not included. The manufacturer recommends NOT to use thread lock on it.
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