Upgrated Baroque Guitar Fret Crowning&Edge Dressing File 3 Slots Size & 1 full Grit Side Improved 4th Generation Repair Luthier Tools for Guitars,Ukulele,Bass,Banjo,Mandolin etc (4th Generation File)

What instruments can it works on?It'll works on most stringed instruments frets.The small size slot works for extra narrow frets, likes ukuleles.The middle size slot works for all standard guitars, bass, banjo, mandolin, cigar box guitars.The large size slot works for jumbo frets.The flat full grit side is used for both fret ends.Would it scratched the finger board?It's possible. We suggest use tape to protect fingerboard before working.（see picture）Warm tips:1.Please read user manual before working;2.Please don't put too much pressure on this fret file when using. Use it slowly and steady will get a better results.Features:100% brand new and high qualityMaterial: High carbon steel/Solid wood handle/Diamond gritsProducts Size:230X16X16mm(see picture details)Net Weight:170g/0.37lbGross Weight:200g/0.44lbPackage Includes1x Fret File1x Genuine Leather Bag1x User manual

• This is the 4th generation Baroque fret crowning file that upgrade with more suited grooves and finer grits. It has been optimized in terms of shape, function, material, and user experience.
• The fret-top file’s main body is designed as a square. Each plane side can be used as a reference to observe if the file and the frets are parallel when filing the frets.
• The new square handle is more suitable for human hand gripping. It fits more and won’t slip. It is easier to apply pressure.
• The innovative square file design can be not only used to level the top of frets, but it can also be used to file some sharp fret ends.
• High strength emery electroplating process brings a longer service life, sharper filing, and higher working efficiency. Use with baroque fret erasers makes the frets very very smooth.