I'm going to pass on needing the tool. With my 1/2" OS drain plug, I don't think 12.3mm will be enough to bore out the threads. I was originally looking at a 12x1.75 as the drill bit is 12.5mm. __________________ 2000 M5 -> 1996 318ti -> 1997 328i Instagram: ndrewchow YouTube: MINIzguy |