These gauges are also useful for checking string-to-fret clearances and fret slot width, for hardware installation work, and for setting up shop tools.

FeelerGauge mm

But you may find what you're looking for referring to the Recommended and Learn sections to the right. If you still can't find what you're looking for here are some search tips:

Feelergauge is used for

The Feeler Gauges are included in the Essential Nut Making Tool Kit, which has all the basic tools you'll need for shaping, string-spacing, slotting and fitting string nuts like a pro.

Simply stack the appropriate gauges on the fingerboard, against the front edge of the string nut, and file the nut slot down to the top of the stack.