Just hunting knives so far. The angle is the most important and all knives are different. The Lansky can adjust for different angles and thats what i did on my different knives over the years. This setup is just plain simple, and it really is for someone who doesnt know how to sharpen a knife. Just set in the right angle and sharpen your knife. Your Knife manufacture will tell you the proper angle to sharpen your blade. It takes about 30 seconds to sharpen a knife. The angles only take seconds to change. Not sure how long the belts last or how long the product last.