Professional sharpener will ensure that no more metal than is necessary is removed during the sharpening process, prolonging your knife's life and silhouette. And the whetstones used in a professional setting are kept wet while they do their work, which prevents the blade from overheating
![](https://static.wixstatic.com/media/e68945_5299255d8a9f4aa0aeda1ef0a7e422cd~mv2.jpg/v1/fill/w_980,h_661,al_c,q_85,usm_0.66_1.00_0.01,enc_auto/e68945_5299255d8a9f4aa0aeda1ef0a7e422cd~mv2.jpg)