The Crescent Nicholson 22040NN is a 5-piece set of files for general use that holds each file in their own slots within a convenient carrying pouch. This set includes a 6" long slim taper file for precision work, two 8" long mill files in smooth and bastard coarseness measures for different finishes and filing speeds, a 10" long mill file with a bastard cut for the roughest material removal, and a 10" long half-round file with a bastard-cut coarseness.