16 pc Diamond Coated Nut File Complete Shop Set

An easy way is to use a pencil You can pencil in the nut slots, or get a little of the graphite in the slots

Nut 'slots' are the gaps that each string fits into

guitar nut slot depth guitar nut Nut slots that were cut or worn too deeply, and chips out of a nut, are both common repair problems for guitars, banjos

guitar nut slot files The basic idea when slotting your nut is file the slots as low as possible without going too low and creating any