ITEM NAME:Guitar Files Tool Grinding Tool Saddle Files Set Luthier Tool Description: Needle File Set For Nut Fret Pin Hole Slot Guitar Luthiers Tool Easy to grip rubber handles provide better control. This set of 10 needle files are perfect for performing work on guitars. Filing string slots into guitar nuts , bridges, Saddles, Pin holes and frets Material: Metal & Rubber Size Chart: Lenght: Approx. 14 cm/5.51 inch Package Includes: 10 Pieces / Set Guitar Needle Files Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item Due to manual measurement, there may be 1-2mm error in size SKU: DMO0015809761001710.Needle File Set For Nut Fret Pin Hole Slot Guitar Luthiers Tool. 10 Pieces / Set Guitar Needle Files. Filing string slots into guitar nuts, bridges, Saddles, Pin holes and frets. This set of 10 needle files are perfect for performing work on guitars.