Electric Guitar File Set for Medium Strings (.013”, .017”, .024”, .032”, .042”, .056”) Industrial Strength Diamond Coated, Comes in Compact Aluminum Case, 3” x 6” x 1.4” strong, lightweight, innovative rope-shaped round blade design that won't bend, resulting in smooth, precise cuts, laser-engraved size on each blade plus ergonomic handle and convenient hole to hang on the workbench, perfect for simultaneously cutting and grinding new or existing nut slots, ideal for all common nut materials like nylon, bone, graphite and TUSQ, they even work great in saddles.