Oregon 7/32-Inch (5.5 mm) Professional Round Chainsaw Chain Sharpening Files for 3/8-Inch, .404-Inch Saw Chains, 12 Pack (70502);

This cutting chain saw file has fewer teeth per inch, which means filings will not be trapped. The consistent tooth height removes metal faster, more smoothly, and in more quantity than other files. This premium-quality file will stay sharper longer.