| More tabs | Achieving a razor-sharp chainsaw chain requires consistent filing angles (25°–30°), appropriate file sizing for the chain pitch, and uniform stroke counts to maintain equal tooth lengths. Proper technique involves using a guide for stability, sharpening only on the forward stroke, and maintaining depth gauges (rakers) to ensure efficient cutting. For detailed visual guidance on manual sharpening techniques, watch this video from chainsawbars.co.uk . chainsawbars.co.uk - using a chain filing guide system