Grobet Swiss Pattern Needle File 5-1/2 Inch Joint Round Edge Cut 2 Precision files, for exacting work, especially under magnification. Made of the highest quality steel, machined and finished for precision shape, accuracy and balance. Flat side not cut, sides cut. Swiss Pattern files means a type of fine file used for precision filing of jewelry, instrument parts, and dies. It does not necessarily mean that all Swiss Pattern files are Swiss made. Used by Professionals