murphy4trees
Addicted to ArboristSite
Of course they don't sharpen on the pull stroke.. The back stroke is not intended to sharpen, and there is no pressure on the file during the backstroke. Please site your source for stating the backdrag dulls the file.. I have not noticed this..Daniel,
I was taught that files, particularly the fine chainsaw type, don't sharpen on the pull stroke. It appears you're dragging across the cutter which actually dulls the file and wears it out more quickly. Only the push stroke actually sharpens the cutter. Just sayin'. Take care, Treetom.