So many string sizes! So few NUT FILES - The Acoustic Guitar Forum
Stew Mac string spacing rule
Gauged Nut Slotting File Set for Bass - StewMac
Gauged Nut Slotting Files - StewMac
StewMac Gauged Nut Slotting File Set for Bass, for 5-String - Set of 5
Norman nut file system vs. Graphtech Question
Guitar Nut File Set, 10 files - Philadelphia Luthier Tools & Supplies, LLC
Nut Shaping Tools – Northwest Guitars
Slotting a guitar's string nut using gauged files
Nut File Tough Love — Haze Guitars
StewMac Gauged Nut Slotting File Set for Bass, for 5-String - Set of 5
StewMac Catalog 142 PDF, PDF, Guitars
StewMac Gauged Nut Slotting Files, 0.010 width