The Hosco Groobar is a set of steel nut slotting gauges in four different thicknesses 1.07 mm, 1.27 mm, 1.42 mm and 1.65 mm (.042". 050". 056" and. 065") that allow you to quickly set the depth of the string slots.
Hosco Double Edged Nut Slotting Files Electric Guitar Set
Hosco Mini Gauged Nut Slotting Files (.016)
Hosco Double Edged Nut Slotting Files Bass Guitar Set
Digital Nut Slotting Gauge, Nut Slot Depth Gauge, String Action Gauge
6x Guitar Nut files Gauged Nut Slotting File Set Sturdy Portable Practical
