ITEM NAME:10pcs Guitar Crowning Luthier Files Stainless Steel Dual Cutting Edge Tool #gib Store Home Promotion Hot Item Add to Fav.Quantity: 10pcs Files + 1pc Storage Bag. Use of diamond file: diamond file almost can file anything can be frustrated move any tool plate, even hardness 69 mysterious high speed steel, but can not be used to repair large and can only be used to repair the details, it rasp knife along.