Properly cared for, a Helko Werk axe should last a lifetime. When it comes time to resharpen the blade, always use quality sharpening implements as they are the surest and most effective means of achieving a perfect edge. In practice, your sharpening frequency will be a function of how often you use your axe, what type of wood you are chopping, weather conditions during use, and any maintenance routines you regularly employ. Sooner or later, however, the blade edge will need to be filed in order to correct the blade shape, remove any nicks or dings that have formed on the edge, and reestablish the bevel face. This is commonly performed with an axe file, and will result in a blade that is functional for chopping, but will not produce a fine razor edge. For a fine edge, a sharpening stone must be used to further refine and grind the blade to a higher level of sharpness. Afterwards, if desired, a final session of stropping with leather and compound will further hone the edge and remove any remaining edge burr, resulting in that razor edge you could shave with.