1 Mike2000 1 week ago I've decided to bring my '99 Silverjet back to life. It needs a new output jack so I ordered one, now waiting for it to arrive. The guitar was very dirty, it was my favourite for a couple of years of gigging but never got to clean it. I took the strings off to clean the crud of the fretboard, man that was pretty gross. One thing leads to another and I figured it would be a good idea to do some fret levelling. I also noticed the nut which apears to be cut with a triangular file without rounding off the bottom where the strings sit. I'm gonna try to improve that or make a new bone nut.Now I need to adjust the trussrod but I don't have a fitting hex key, at least can't seem to find one. I'll need to order online since I'm living in metric-system land.What size key would most likely fit here? It's 1999 Gretsch Silverjet 6129T-57Thanks in advance!