These Swiss Pattern, Slitting style, cut 4, 14cm long, needle files are parallel in width and thickness and taper from a centerline down the middle of the file to both edges that meet at a point. Both sides are cut. This needle file is used for precision filing of small areas and for miniature work. Teeth are sharp and cross-cut, assuring even filing. Recommended for both soft and hard metals, including platinum. Handles are knurled to provide a sure grip. Made to the demanding standards set by Grobet USA® in their factory in Italy.