Polishing and de-burring ability of a stone combined with the cutting ability of a file! Perfect for touching up edges and removing burrs on-hill for enhanced performance or to smooth and polish edges after filing. Use wet (immerse in 50% denatured alcohol and water) and place in file holder or guide for best results. Premium extra coarse 100 grit diamond paper bonded to Diaface flexible plastic plate, 100mm Pick (3), (4) or (5) and save. Type multiple grit choices in box below. Made in Italy.