Pferd Part Number Round File Size Sharpens Chain Pitch 17047 5/32 1/4 & 3/8 Low Profile 17057 11/64 .325 17038 3/16 .325 17048 13/64 3/8 17039 7/32 3/8 & .404 17040 1/4 1/2 17061 5 …