If you do much cooking in your own kitchen, then you might have collected a few different knives. You might have paring knives, chef's knives, steak knives, and more. To take care of your knives, consider using a mail-in cutlery knife sharpening service for these reasons. You Can Have All Types of Knives Sharpened These knife sharpening services will typically sharpen all different types of kitchen knives. It shouldn't matter what brand or type of knives you have in your kitchen, you should be able to use one of these services.