𝗧𝘄𝗼 𝗚𝗿𝗶𝘁𝘀 𝗼𝗳 𝗖𝘂𝘁𝘁𝗶𝗻𝗴 𝗧𝗲𝗲𝘁𝗵 - with medium cutting edge to deepen the slot while the fine side to smooth the slot bottom, a few strokes to achieve excellent results with less effort 𝗦𝗵𝗮𝗿𝗽 𝗧𝗲𝗲𝘁𝗵 - the super sharp fret file was made of carbon tool steel T12 and with hardness＞HRC60, works well on making flat nut seating slot and cleaning glues or debris 𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻 - 1/4" width plus 4" cutting length nut seating file, work well to deepen and smoothen the bottom of the nut seating slot of electric guitars and basses 𝗣𝗿𝗼𝘁𝗲𝗰𝘁 𝗡𝘂𝘁 𝗦𝗶𝗱𝗲 𝗪𝗮𝗹𝗹 - designed with smooth file wall, to leave the nut seating slot wall unscarred; with comfortable rubber-coated handle 𝗦𝗮𝘃𝗲 𝗧𝗿𝗲𝗺𝗲𝗻𝗱𝗼𝘂𝘀 𝗧𝗶𝗺𝗲 - with the sharp and flat file teeth that shorten time of fret work, you will like getting the nut slot flat and smooth, clean and square