Guitar nut replacement on an Epiphone – handcarved bone replacing machine-made plastic. Much better sustain & tone (and looks).
To quote ultimate-guitar-online.com, “if you are getting a lot of buzzing with your open strings when you are not strumming the guitar too hard, it is likely that you will be needing a guitar nut replacement. (…) Another common reason that nuts need replacement is after a refret job is preformed. The strings were seated in the nut lower and there was not any buzzing on the frets because they were worn. With new frets installed, the top level of the new frets will extend too close to the string action of the old nut grooves.”
They also point out the nut material difference (guitar nut that is):
Plastic: Forget it. Plastic is an insulator and it also insulates sound. Corian is often used on some factory guitars and would be ok to use on cheaper guitars. I have a supply of scrap white corian that I picked up from my local building supply center for these installations.
Bone: Bone is a very good material to use for nuts and saddles. The bone is bleached and is very white, hard and dense. If transfers the sound very well from the strings to the tone producing elements of the guitar. Ideally used for high-end guitars, handmade guitars and classical guitar. The black should be an Oversized Bone Nut Blank.
Basone Guitars 