Martin Bone Nut - Slotted

A Note on Replacement Nuts:

Whilst these nuts are cut to size, they still require the string slots to be cut, and as every guitar is unique, most of the time they also need extra sanding and filing to ensure a proper fit and playability. If you're not comfortable with nut replacements or adjustments, we recommend bringing your instrument in to us, or your local guitar technician for replacement and installation.