Holmer Guitar Nut Slotting File Saw Rods Slot Filing Set Needle File Set Luthier Replacement Tools Tip aner Files.

The guitar nut and bridge file set with 13 round files and 1 flat file, universal for string instruments, such as guitar, mandolin, bass, ukulele and banjo etc. The round files for polishing the string slots, and it makes the string slot very smooth, and it working quietly. The flat file for burnishing the nut and bridge. Stainless steel material, compact and sturdy. Mini size, comes complete with a sturdy aluminium case for storage, convenient to use and carry. The depth of string slots of thirteen round files: 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.6mm. Aluminium carry case size: Approx: 102mm x 23mm x 12mm/ 4.05" x 0.9" x 0.47". 100% brand new, never used, testing is fine. These are recommended for wood and bone, and soft metals such as brass, copper or aluminum. Not recommended for hard or ferrous metals.Use gently for best results.