Abrasive Sharpening File Kit, File Shape Knife Blade, Round, Square, Triangular, Grit Various, Number of Pieces 10, Abrasive Material Aluminum Oxide, Hard Arkansas, Included Files Fine India, Ultra Fine Hard Arkansas, Trade Number FF114, FF14, FF214, FF44, FF724, HF113, HF13, HF43, HF813, HF873, Grade Ultra Fine