ITEM NAME:Guitar Nut Slotting File Kit Saw Rods Slot Filing Set Luthier Guitar Repair Tool Descriptio n Features: Brand new and high quality Easy nut slotting and filing. Perfect for filing string slots into nuts. Set of 13 string size 1-13 With the longer shaft length it makes them easier handling for filing string slots. Specification: Material: Stainless steel Each rod length approx:55mm Diameters: .0.4mm-1.6mm ï ¼Ë†as the pictures showï ¼â€° Note: That these files are especially the smaller ones are thin metal can easily bend and need work slow for smoother slots. Care is recommended when using them so that they will last you a good while. Use is for wood and bone, and soft metals such as brass, copper only. Not recommended for hard or ferrous metals. Package Included: 1 x Set of 13 string saw rods for nut slotting High quality buy, happy buyï ¼ Guitar Nut Slotting File Kit.Easy nut slotting and filing. 1 x Set of 13 string saw rods for nut slotting. Guitar Nut Slotting File Kit. Set of 13 string size 1-13 With the longer shaft length it makes them easier handling for filing string slots.