Fender Genuine Precision Bass String Nut, Pre-Slotted, Bone Originally featured as an upgrade to 2010 American Deluxe Series Basses, this high-quality genuine bone string nut is pre-radiused to 9.5" Pre-slotted with string location points to make spacing and positioning a breeze when performing the final nut slot filing 9.5" radius, approximately 1.75" wide Some modification may be required