Even a good knife will lose some of its sharpness with time. While honing steels only straighten a fine edge knife, a Diamond sharpening steel can actually sharpen a fine edge knife through the removal of steel. The same actions used on a regular honing steel are effective at defining a new edge when using a Diamond steel. The average lifespan of diamond coated steels may be shorter as the coating tends to gradually wear off. Watch our how-to video and learn to properly hone a knife.