It is because the very best edge of the cutter is not really actually horizontal, but is somewhat sloped back again. If your "rakers" are usually not adjusted, the cutters' sharp edges will at some point not be touching the Wooden in the slightest degree after numerous filings, making it http://top-ten-reviews85061.mpeblog.com/10188464/how-to-measure-chainsaw-chain-and-bar-length-options