The guide should fit flush on the chain with only one tooth centered in the guide as shown below.

How to use a chainsaw file guide. Easy steps to power your chainsaw step 1: For 3/8 pitch chain, use a 4.8mm (3/16”) file. Cut from the top and use a downward stroke along the chainsaw’s lower edge.

It comes in either a round file or flat file depending on the type of cutter. Chainsaw file size as we will see on the graph, the primary file options are 4.0 mm, 4.8 mm, and 5.5 mm. The file should grind against the cutter for you to be sure that it is.

How to sharpen chainsaw chain with a file: The main thing is to make sure you always have a sharp chain to facilitate your work. Count how many stokes you.

Work at an angle so that the tree trunk comes between you and the chainsaw. As you slide the file through the cutter, you should feel the grind. The pressure on the file is towards the rear (of the file).

Chain, use a 3/16 inch. Therefore, the file cannot be used as a guide for sharpening the chisel cutter. Just rotate it out of the way.

Position the file at an angle of 30 degrees and file horizontally versus (relative) to the blade. Place the file and file guide into a cutter on the superlative and near the cease of the bar. Oregon® chainsaw filing guide, bar mount design, assists with filing chainsaw chain for better consistency and accuracy, 23820 part#.