and . Easy nut slotting and filing. Perfect for filing string slots into nuts. Widen and shape pin hole slots so they fit perfectly. As a guitar builder and luthier I use they myself all the time. Set of 13 string size 1-13 With the longer shaft length it makes them easier handling for filing string slots. Material: Stainless steel Color: Silver Each rod length : 2 1/2 inch Diameters: 0.14 inch - 0.61 inch as shown in the pictures Note: That these files are especially the smaller are thin metal can easily bend and need work slow for smoother slots. Care is recommended when using them so that they 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.<br><br>package included: 1* Guitar Nut Slotting Bridge Pin Hole Slot File Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.