Professional Guitar Nut Slotting File Kit Stainless Steel Guitar Nut Slotting File Saw Rods DIY Guitar Repair Tools Accessories. Features: 100% brand new and high quality, easy nut slotting and filing, perfect for filing string slots into nuts. Specification: Material: Stainless steel, product size: approx. 85*15*10mm/3.34*0.59*0.39'', net weight: approx. 11g.