Nut Slotting Gauge Options:Base - Bass version different supports can be quick

different supports can be quick changed by using the quick release pin

This Luthier Digital Caliper has 2 differences with the regular calipers

3" and 4" edges are enough for any instrument with frets

Professional

Nut Slotting Gauge Options:Base - Bass version different supports can be quickThe Digital Nut Slotting Gauge measures the string height on the first fret, the measurements are more accurate, so that you can file your nut depths more accurately. It features a digital indicator with a zero button and inch mm switch button, accurate to . 0005"(0. 01mm). Your most accurate measurement is at the first fret, For taking measurements higher up the neck, we recommend the String Action Gauge. The brass base fits over the strings to rest