I replaced the stock nut and bridge on my SG - Graphtech Tusq XL 606000 and Tonepros T3BT-C Metric bridge. Whoever worked on the nut before had cut the low E nut slot very deep. The G string had an annoying buzz at the bridge. Only had to do minor sanding on the nut to get it to fit and the bridge fit right onto the existing pins. I did have to raise the tailpiece a small amount so the strings could clear the edge of the new wider than stock bridge.